aka DTV, Digital Tele vision: A new digital broadcast format for television, both via the air and
via cable. The ATSC (Advanced Television Systems Committee)
devised the American digital TV standards for resolutions from 704 × 480 (DTV) to 1920
× 1080 (HDTV 1080p).
There are three kinds of TV:
- the old analog NTSC, now pretty much obsolete.
- digital DTV. It is on the way out already even before it was officially mandated.
- digital widescreen HDTV, the most costly.
Advantages of DTV
The USA was officially switching on 2009-02-17 from analog NTSC to digital and dropping analog, however the have delayed it to 2009-07,
though some stations have already switched. Your analog VCR will stop working too. Thereafter you will need to buy a analog to digital converter to make your current TV work.
The current VHF channels will be recycled for things like cell-phones, Internet transmissions, pagers etc. However, most cable and satellite services will continue to offer
the old analog connection. In Canada, Shaw cable will continue to offer analog service until about 2011.
We will see gigantic hard disks replacing the VCR. This should bring down the cost of hard disks for computer users.
The catch is, the programming content is the same old same old you got on analog TV; it is just prettier.
Disadvantages of DTV
- Channel surfing is frustrating because it is very slow to change channels. The screen blanks for a second between channels and buzzes for a fraction of a second thereafter. I
suspect this is because it the compression method transmits only differences between frames. You need a number of frames to prime the pump. What you do instead is scan the
interative viewing guide, which does not have such a delay.
- There is no way to remove a channel you don’t subscribe to, or don’t want to see from the viewing guide. You have to scroll through a lot of chaff to find the
wheat.
- If you watch old analog TV or DTV on a new widescreen TV, the TV will have to stretch/chop the image in various ways to make it fit on the wide screen. The tops of people’s
heads are chopped off. Writing at the bottom of the screen is chopped off. In some modes, images are stretched wider so that people look squatter than they really are.
Satellite vs Cable
There are three sources of programming:
- cable
- satellite disk
- DVD discs
Since one satellite serves an entire continent, it tends to have many channels originating in distance cities. It tends to be shy on local channels. Cable is the reverse. Make
a list of your must have channels and make sure they are included in whatever plan you are considering. You will be surprised how many vendors deliberately leave out obvious
channels from the basic set.
Satellite tends to be less expensive. However you must have written permission of your landlord for the satellite company to install the dish, and you must have a clear line
of site to satellite from where the dish is mounted.
Check the direction to the satellite for Star Choice from your
city. For example, from Victoria where I live, it is azimuth:140°, elevation:32.3°, skew:76°
for one of their satellites and azimuth:145° elevation:33.1° skew:79°
for the other. The azimuth is the number of degrees clockwise/east of due north. The elevation is the angle above the
horizon. The skew is an electronic trick to let one dish point at two different satellites simultaneously. I have not been able to find anything more
detailed than that. The “experts” treat it is something you mindlessly tweak to the setting the satellite company tells you to.
Normally, you would point your dish half way between the two satellites. In my case the dish has to point south east, 37.5° east of due
south, to the sky without any trees or buildings blocking the way. The geosynchronous Anik satellite orbits at exactly the same speed as the earth rotates at stationary orbit 37,014.91 km (23,000 miles) high above the ground. The radius of the earth is only 6,371 km (3,958.76 miles). Thus is hovers about the exact same spot on the ground, one
at 107.3°W and one at 111.1°W, above the equator roughly at the longitude of Moosejaw about 1,650 km (1,025.26 miles) west of the Galapagos Islands.
The satellite company will deal with disk installation and aligning for you. They need to install a more powerful type of disk to deal with HDTV. You don’ have to
understand any of this technobabble. Just be aware, that satellite service can’t always be provided. It requires a clear line of site to the satellite. So for example if
you lived in an apartment building with a northern exposure, you are S.O.L. even if your landlord does give you permission to set up a dish.
Bell TV (née ExpressVu) is vague about where there satellites are. They say only that they are south for western Canada and south west for locations Manitoba east. This
implies their Telesat Nimiq 4 satellite is placed close to where Star Choice does.
You can buy or rent DVDs. To get full 1080p resolution, you must have a fairly expensive blu-Ray DVD player. With ordinary DVD players and discs, you will just get the same
resolution image you did on your old analog TV.
Here in Victoria there are three choices of provider:
Bell TV Satellite Advantages/Disadvantages
- Adapter box is inexpensive and can be converted to a 1000-hour PVR with the addition of an ordinary
1 TB USB hard disk.
- All signals are digital.
- Bell use more modern satellites so needs only an 45.72 cm (18 in)
diameter dish.
- The entry level HD plan is
a month more expensive than Star Choice’s.
- Need to install a satellite dish, with line of site. You need the landlord’s permission.
Shaw.ca Cable Advantages/Disadvantages
- You get the kitchen sink in terms of channels in the basic package, even obscure independent local stations like KVOS.
- You get a
a month discount if you get both your Internet and TV service from Shaw.
- Adapter boxes are very expensive.
- Most of the channels are analog.
- The entry level HD plan is
a month more expensive than Star Choice’s.
Star Choice Satellite Advantages/Disadvantages
- Low monthly cost.
- You get a
a month discount if you elect paperless billing.
- All signals are digital.
- The dish is included at no extra charge.
- Installation is included at no extra charge.
- The installer provides the necessary cables to hook up the adapter and your TV at no extra charge.
- Need to install a satellite dish, with line of site. You need the landlord’s permission.
- Not as many choices in optional channels.
- On the website they tell you that “digital favourites” bundle is their most popular offering, but don’t tell you what is in it. You can find out by sending
them an email query or by downloading the PDF description of all their plans available from the QUICKLINKS section of the home
page. What’s in it depend on whether you live in eastern or western Canada.
- Star Choice uses the ancient Anik satellites so needs a larger 60 cm (23.62 in)
diameter dish. Star Choice assures me that despite their age, these satellites are in good repair and have plenty of spare capacity and will not need to be replaced in the
foreseeable future. Further the programmable logic in the receivers will allow them to adapt to future technology without changing the dishes or adapter boxes.
Open Up Your Wallet
The cost of a new HDTV can really add up, because you will also be strongly tempted to buy:
- An HD-capable DVD player. Your old DVD won’t do HD. You need a a Blu-Ray player for full HDTV resolution. Even though HD-DVD players cost
half as much, Blu-Ray won the marketing battle and HD-DVD players are no longer manufactured.
- An HD-capable digital recorder. You old analog VCR won’t work.
- HDTV cable or satellite service, or at least digital service. You will need a set top box which may cost more than the TV (or a TV with a built-in cable ready unit), and a DTV
or HDTV cable subscription that costs perhaps 3 times what it does now. Because of the expense we may see computers and Internet video content (U-tube)
competition growing explosively.
- You need some electronics called a tuner to extract the channel data feed from the broadcast signal containing all channels. It also decompresses the MPEG stream. Currently
HDTV in North America uses MPEG-2, but there is a gradual switch to the denser MPEG-4. This tuner functionality might be inside the TV, a separate box, or something you rent
or buy from your cable/satellite provider.
- Home theatre sound. The assumption is sound will be processed through your stereo system, and its speakers so you will need to have some sort of stereo system beside your TV.
Home theatre 5.1 sound uses 6 speakers 3+2+1.
- Front left, front centre and front right (3).
- Rear left and rear right surround sound (2).
- Center woofer LFE (low-frequency effects channel) (1).
There are even more advanced schemes with up to 14 channels, but you won’t see these in digital TV, at least for now.
Before you buy a TV, note the model number and check it out on the Internet. You should be able to find detailed specs, comparative prices, diagrams of the connectors, and
even the manual.
Why So Expensive?
When you double the size of a screen, you have four times as many pixels. In the manufacturing process it is much more difficult to manufacture a large screen than a small one
with no defects. If four small screens have one defect among them, the manufacturer discards one screen and sells three. If a big screen, the equivalent in size to four small
screens, has a defect, the manufacturer discards the big screen and has nothing to sell. That is partly why large screen TVs are so much more expensive than smaller ones.
One Time Costs
You will need to buy and DTV or HDTV and sign up with a cable or satellite service. The costs for this add up very quickly.
| One Time TV Costs |
Cost
|
Purpose |
|
purchase adapter box with TiVo-style PVR Personal Video Recorder
recording ability. Your cable provider may insist you purchase this from him. Ideally it will let you watch one HD program, stopping, rewinding, fast forwarding while it
records another HD channel in the background. |
|
purchase adapter box with without TiVo-style PVR Personal Video Recorder
recording ability. Your cable provider may insist you purchase this from him. |
|
Extended 4-year replacement warranty |
|
cables. TVs come without any cables. |
|
purchase a receiver (adapter box) without TiVo-style recording ability, for satellite. Add a
USB external 1 TB hard disk to convert from a digital box to a 1000 hour PVR
Personal Video Recorder. |
| ? |
sales taxes |
| ? |
installation. satellite dish. They may be included, and then they may not. |
|
Government recycling fees |
Monthly Costs
| Monthly TV Costs |
Monthly Fee
|
Purpose |
|
deluxe HTDV cable service, includes digital and analog, 60 analog channels, 50 Digital channels, 25
HDTV, 30 specialty channels, a movie, 40 digital audio channels. channel. |
|
deluxe digital cable service, includes 60 analog channels, 100 digital channels, movies, 40 digital audio
channels |
|
basic HTDV satellite service from Bell TV (née ExpressVu). 0 analog channels, 100 digital
channels, 6 theme packs (about 10 channels per pack), 22 HDTV. You can change the
channels you subscribe to by logging into the Bell website. |
|
basic HTDV cable service, includes digital and analog, 60 analog channels, 50 Digital channels, 25
HDTV, 40 digital audio channels. |
|
basic digital cable service, includes analog 60 analog channels, 100 digital channels, 40 digital audio
channels |
|
deluxe old style analog cable service, 60 analog channels |
|
basic HTDV satellite service from Star choice 0 analog channels, 60 digital channels, 14
HDTV. Many of these are near duplicates, the same channel as broadcast in different cities across Canada. |
|
bare bones digital service, 35 channels, plus 40 commercial-free, talk-free music channels (titles on the
screen tell you what is playing) in a decent selection of genres and a FRAME channel (images that look like wall paintings with elevator music), some analog, some digital
depending on what the station broadcasts, though your TV sees them all as digital on channel 3. I have had three different answers from three different Shaw employees on just
what parts of the system are analog and which parts digital. The bottom line is image quality on all channels seems slightly improved. No HDTV. Shaw offers this bundle, but
does not mention it on its website. You can add specialty channels, but not HD channels, for
each with discounts for multiples. Access to some channels requires subscribing to a tier for about
. Why the complications!!! This is what I am currently using myself. |
|
basic old style analog cable service, 35 analog channels |
|
HD HBO channel |
|
basic digital adapter box rental. Your cable provider will insist you rent/purchase this from him. |
Prices are those Shaw Cable charged in Victoria, BC, Canada in 2009-03, for ball park budgeting.
What Channels Do I Get?
I spent days going over the websites of content providers Bell TV, Shaw
and Star Choice.
The websites were designed by the same guy who created the forms you use to calculate your income tax. I think the intent is deliberate bamboozlement to keep people from
figuring out how much they will have to spend up front, what the monthly costs are, and what channels they will get. They never quote you the actual price of anything. They
show some price, then a confusing set of discounts. Then in the fine print they explain why you don’t actually get the discounts much of the time. It is very hard to
nail down all the charges with any certainty. I discovered that one vendor even had the gall to charge a fee if you did not return the set top box in pristine condition that
you had supposedly purchased up front, if you cancelled service within a year. The lists of channels are not sorted in any order. There all kinds of weird rules about what
channels you may combine, e.g. that you may not order the HD channel unless you also order the DTV version of it. This is silly. If you have the HD channel, you don’t
even want the DTV version. You don’t just choose the extra channels you want above the basic package, you must select bundles. A given desired channel may appear in
several different bundles, so you have to juggle to get the best fit to the channels you actually want. It burns me up to be forced to pay for religious channels. I don’t
want to support those crooks with even a penny. The websites contradict themselves in rules, channels and prices. They need a computer program to help customers configure the
channels you want for the minimum price. One of the most common dishonest ploys they use is to quote you an introductory price, and then in the fine print tell you the rate
goes up after a year. It seems to me it would be ever so much simpler just to tick off the channels you want and have a computer program tote up the cost of the channels
individually with volume discounts.
I found printing the PDF files produced the clearest information.
You also want to know what sorts of output the adapter box provides so you can be sure your TV supports one of them, and to have the appropriate cable on hand if that is your
responsibility. Bell gives none of this information.
The other piece of questionable business practice that these companies indulge in is forcing you to buy an adapter box from them an inflated prices. They excuse themselves by
saying they can’t be expected to deal with hundreds of different models, so they force everyone to standardize on one, and buy it from the cable/satellite company. My
nephew, a movie actor, managed to talk Shaw into breaking this rule, but the hassle was not worth the savings. They need to understand how the box works so they can use it to
align the dish pointing directly at the satellite.
A Shaw technician explained why some channels you get with digital service are still delivered over cable in the old analog form to the adapter box. It is because some TV
stations are still broadcasting analog. As they flip over to digital, then digital service customers will get them in digital, and Shaw will convert the digital signal to
analog for the legacy analog service customers. Some stations such as CHEK already provide both analog and digital via fibre optic to Shaw, who then pass the digital on to
digital customers and analog to the analog customers. The flipover to digital in the USA is due to be complete by 2009-07. There is no corresponding
date mandated for Canada.
Satellite companies have no choice but to deliver digitally, so they convert any signals from TV stations broadcasting only in analog to digital before sending them up to the
satellite.
Display Technologies
There are five main types of display technology:
CRT
cathode rate tube. Old style. Consumes a lot of AC power and produces a lot of heat.
LCD
liquid Crystal display: sharp, low power, limited viewing angle.
LED-LCD
liquid Crystal display: sharp, low power, limited viewing angle, with an LED backlight. This gives high contrast and a bright image. The Samsung LED is actually an ordinary
LCD screen, with LEDs to provide the backlight. The LEDs are not used to create the picture the way the would be on a football scoreboard.
gas plasma
bright, high contrast, more expensive than LCD. Uses more power. It uses so much more power, some countries are considering banning them.
OLED
Organic Light Emitting Diode, latest out the lab, vibrant colours, from Sony,
obscenely expensive.
Sony Bravia TVs have a feature called MotionFlow. It inserts up to 3 extra interpolated
frames between every transmitted frame to make the motion appear smoother. Movies display 24 frames a second, analog TV displays 30,
DTV displays 60 and Motionflow up to 200. The subjective effect is to reduce blurring on fast motion.
Monitor vs Digital TV
An LCD computer monitor looks very much like a digital TV. However there are some differences.
- A TV is about twice as bright so you can sit back.
- A monitor usually has more adjustments for position and angle.
- A monitor usually has higher resolution e.g. 1920 × 1200 pixels. An HDTV will have only 720p: 1280
× 720 progressive, 1080i: 1920 × 1080 interlaced (half speed) or 1080p:
1920 × 1080 progressive. SDTV (Standard DTV) will have only 480i: 704
× 480 interlaced or 480p: 704 × 480 progressive. In other words HDTV
images are relatively wider but not as tall compared with monitors.
- A computer monitor will have an 15-pin analog connector, or four discrete analog cable, or sometimes a digital connection.
- The TV contains a tuner to filter out one channel out of many on a coax cable. A monitor can deal with only one signal on its input.
- Monitors typically update the screen 70 times a second. Progressive scan TV updates it 60 times a second, and
interlaced 30 times a second. This makes monitors more immune to flickering in the presence of fluorescent light.
- Monitors are usually faster, with a response time of perhaps 6 ms (milliseconds) where a DTV might be 12 ms. The
smaller the number, the crisper the picture during action shots.
You can convert your computer/monitor into an HDTV by adding a low-cost tuner card. Use your stereo for the sound. The advantage of this approach is you can capture stills and
clips from TV to your hard disk, and use your hard disk like a TiVo, though the software is more primitive.
Some HDTVs now come with computer connections, with VGA analog and HDMI digital connector, so you can treat them like huge monitors.
HDTV cables and Connectors
An HDTV might have a variety of possible inputs including:
| Image |
Video ? |
Audio ? |
Notes |
 |
| HDMI connector |
|
|
|
HDMI (digital, latest and greatest). The signal is the output of a tuner, a single video channel (with theatre sound channels), uncompressed. It
uses a 19-pin connector that looks at first glance similar to a USB connector. Digital means noise-free. These cables cost
to
so check if they are included and factor them into the cost of your new TV. Coming soon, HDMI 1.3 which will have increased bandwidth. |
 |
| coax connector |
|
|
|
Digital coax cable from the cable/DSS (Digital Satellite
System) company. At a casual glance these look like RCA phone jack cables. Read the label. These cables cost
to
Also analog coax cable from the cable/satellite dish company. |
 |
| 6-pin Firewire connector |
|
|
|
Firewire IEEE 1394 so you can hook up your Mac. There are 4 and 6 pin versions and three speeds 1394a, 1394b and 1394c. The 6-pin type are most
commonly used in HDTV. Apple collects royalties on every Firewire port in the universe. This is mainly why they are more expensive than USB ports. These cables cost
to
|
 |
| DVI-D connector |
|
|
|
DVI-D (older digital scheme). Video-only, no audio. |
 |
| component A/V connector |
|
|
|
Component Video (analog). Uses colour difference, not simple RGB. Connectors are labelled [Y R B] (yellow red
blue) or [Y, R-Y, B-Y] (yellow, red minus yellow, blue
minus yellow) or [Y, Cr, Cb] or [Y, Pr, Pb]. That handles the video. In addition you have two more cables for left and right audio. These cables cost
to
|
 |
| S-Video DIN connector |
|
|
|
S-Video DIN (analog DTV, low quality). The signal is the output of a tuner, a single channel, decompressed, analog. It uses a 4-pin
mini DIN connector. It separates out brightness and colour signals. It is video-only. |
 |
| S-Video coax connector |
|
|
|
S-Video dual coax (analog DTV, low quality). The signal is the output of a tuner, a single channel, decompressed, analog. It uses a dual coax
connector. It separates out brightness and colour signals. It is video-only.
|
 |
| VGA analog PC connector |
|
|
|
PC VGA, analog, so you can hook up your computer. 15 pins, often with pin 9, a
keying pin missing. That handles the video. In addition you have two more cables for left and right audio. These cables cost
to
|
 |
| S/PDIF PC audio digital optical connector |
|
|
|
S/PDIF Sony/Philips Digital Interconnect
Format. Aka Toslink (Toshiba Link) PC Audio, so you can hook up your computer. This could be a variety of connectors
including mini plugs, RCA phono jacks, S/PDIF digital 5.1 (front left/right, back left/right, woofer) optical fibre or S/PDIF coax. You may need to buy adapter cables to
convert. S/PDIF optical is shown. Audio only. |
 |
| S/PDIF PC audio digital coax connector |
|
|
|
S/PDIF Sony/Philips Digital Interconnect
Format. PC Audio, so you can hook up your computer. This could be a variety of connectors including mini plugs, RCA phono jacks, S/PDIF digital
5.1 (front left/right, back left/right, woofer) optical fibre or S/PDIF coax. You may need to buy adapter cables to convert. S/PDIF coax is shown. |
 |
| composite A/V connector |
|
|
|
Composite NTSC A/V analog legacy, aka yellow RCA connector. You will get an old-style analog NTSC picture. These look a lot like digital coax.
Make sure you read the label when you buy cables. |
| Above images are not shown to the same scale. |
Old Style CRT TVs
Be careful because retailers often don’t tell you a new TV is actually a CRT (Cathode Ray Tube).
They hope you will be fooled and imagine it is an LCD flat panel because they advertised it as flat panel. One giveaway is the weight. A CRT will be
a whopping 40 kg (88.18 lbs) for a 27”
CRT TV. CRT TVs are not desirable, unless you rarely turn them on, since they use so much electricity. Oddly, even though they are much heavier, they are cheaper. CRTs come in
three flavours: round, virtual flat and true flat.
 |
 |
 |
| Round televisions have a rounded picture tube, with a rounded cabinet. This gives the television a bubble effect. |
Virtual Flat televisions have a rounded picture tube, with a flat frontal cabinet. This gives the television and picture a flat
effect (but is still a rounded tube) |
True Flat televisions have a flat tube and flat cabinet giving a true flat picture effect. |
Digital Video Recorder
A DVR (Digital Video Recorder), sometimes called a TiVo
(though that is actually a brand name of a premium quality DVR) is a small computer with a hard drive that can record television shows on a hard disk. It is the digital
equivalent of the VCR. Unlike a VCR, it can record only so many hours before it is full and you have to erase something to make room for more. There is no cartridge that you
can replace to give it infinite capacity. Though it would seem to me, it should be relatively easy for DVR makers to add a DVD burner so you can export recorded shows. It can
also do instant replay in slow motion, or full speed. It can instantly jump to anything previously recorded, unlike a VCR which must slew tape. I was astounded to learn there
is no proper protocol for the DVR to control the cable company’s channel changer box, unless you buy your DVR from the cable company. The DVR works in a rinky dink,
unreliable way by pretending to be an infrared remote control. DVRs are usually much cleverer than VCRs. You can, for example, tell them to record episodes of House that you
do not already have recorded, without telling it when to record or which channel. It automaticaly consults the computerised TV listings to discover when it is on.
Real World Equipment
Amazon is a fun place to “window shop” since they tend to have a fair bit of technical information about the various models. You can search sorting by price, which
is a way to sort out what various features cost you. The following links are to high end equipment. High end models tend to have the best explanations of what the various
features buy you. Further, you can Google the model numbers to find even more information from the manufacturer and online reviews all over the web. From there you can find
more reasonably priced items.
Check the native resolution. If it is not 1920 × 1080 or higher, your screen will
not do full HDTV. It may display the image, but not in full detail. Only the largest TVs offer 1920 × 1080.
Most offer 1366 × 768, ¾ the full resolution.
A 15” analog CRT TV is has a 15” diagonal tube size. The actual viewing area might only be 13.5”
to 14” diagonal, i.e.. You may only get 8.2” wide by 8.2” high
with a viewing area of 93 square inches.
The way sizes are specified for LCD TVs is more honest. A 15” LCD is 15” across, 8.4”
tall with 126.6 square inches of viewing area, i.e. 36% more than a 15“
analog CRT.
It costs about
extra for a digital tuner built-in to the TV. You will need this to receive broadcasts through the air over an antenna. You probably will not need it for cable service since
the cable company provides the tuner box specially designed to hook into their network. An analog NTSC tuner, nearly always built-in, will let you continue to receive analog
cable service.
If you can’t afford the digital service of HDTV service, and are going to continue with the old analog NTSC cable service, there is not much point in getting a TV that
can do all the high resolutions, unless you get a Blu-Ray DVD player and rent movies.
| Digital TV Equipment |
| HDTV |
Component |
Standard Digital TV |
 | recommend Amazon⇒Panasonic Plasma HDTV |
| asin: B000LCPVMY |
| Panasonic TH 65PF9UK. Bright plasma display. It is 65“ wide. It has 1920 × 1080 resolution, full HDTV 1080p. Does not contain a tuner. The cable company set top box must provide channel selection logic. Has one DVI connection. |
|
|
Plasma TV |
 | recommend Amazon⇒Panasonic Plasma DTV |
| asin: B000HAWAL0 |
| Panasonic TH-50PH9UK. It is 50” wide. It has 1366 × 768 resolution, not up to full 1080p HDTV snuff. S-Video, 9 and 15 pin VGA. RGB component video in. HDMI is an optional accessory. |
|
|
 | recommend Amazon⇒Samsung Plasma HDTV |
| asin: B0015PBTHM |
| Samsung PN58A650. I like Samsung. They make solid no-nonsense gear that does not break down, and that gives good value for the money. This model is 58" wide. It has 1920 × 1080 resolution, full HDTV 1080p. 100,000 to 1 contrast ratio (bigger is better). |
|
|
Plasma TV |
 | recommend Amazon⇒Samsung Plasma DTV |
| asin: B0015AR7AK |
| Samsung PN42A450. I like Samsung. They make solid no-nonsense gear that does not break down, and that gives good value for the money. This model is 42” wide. It has 1365 × 768 resolution. 100,000 to 1 contrast ratio (bigger is better). |
|
|
 | recommend Amazon⇒Sharp Aquos LCD-LED HDTV |
| asin: B001KQ3US2 |
| Sharp LC-65XS1U-S Aquos Limited Edition LCD-LED HDTV. This is the biggest most expensive LCD TV you can buy It has an astounding 1,000,000:1 contrast ratio for deep blacks. It is 65" wide. It has 1920 × 1080 resolution, full HDTV 1080p. Has HDMI input. |
|
|
LCD TV |
 | recommend Amazon⇒LG LCD DTV |
| asin: B001L1A6HY |
| LG 26LX2R LCD Television. 26” wide screen and a 1366 × 768 resolution. Not up to full 1080p HDTV snuff. Contrast ratio 500:1. Requires separate receiver to view HDTV signals. Up to 1080i (HDTV). DVI and DMI connectors. |
|
|
 | recommend Amazon⇒Samsung Series 7 LCD HDTV |
| asin: B001418WF4 |
| Samsung Series 7 LN52A750 LCD HDTV. I like Samsung. They make solid no-nonsense gear that does not break down, and that gives good value for the money. This model is 52" wide. It has 1920 × 1080 resolution, full HDTV 1080p. 50,000 to 1 contrast ratio (bigger is better). 4 ms response time (smaller is better). 4 × HDMI inputs. |
|
|
LCD TV |
 | recommend Amazon⇒Samsung Series 6 LCD HDTV |
| asin: B001415FZY |
| Samsung Series 6 LN22A650 LCD HDTV. I like Samsung. They make solid no-nonsense gear that does not break down, and that gives good value for the money. It is 22” wide. It has 1280 × 720 resolution. 50,000 to 1 contrast ratio (bigger is better). 4 ms response time (smaller is better). 4 × HDMI inputs. |
|
|
 | recommend Amazon⇒180-hour TiVo Digital Recorder |
| asin: B000ER1G3E |
| TiVo TCD649180 Series2 180-hour TiVo Digital Recorder. Magnetic tape-style VCRs will not longer work with DTV. Instead you use a digital recorder. This one from TiVo will record your favourite programs for you without you having to explicitly tell it when they are on since it consults an online TV guide it accesses via a telephone call. Further it will let you pause and rewind a show you are watching live. It can record 180 hours digitally. Can record a basic and digital channel simultaneously, but not two digital channels. Some TVs come bundled with a digital recorder. |
|
|
Digital Recorder |
 | recommend Amazon⇒80-hour TiVo Digital Recorder |
| asin: B00006LIQL |
| TiVo R24008A Series2 80-hour TiVo Digital Recorder. Magnetic tape-style VCRs will not longer work with DTV. Instead you use a digital recorder. This one from TiVo will record your favourite programs for you without you having to explicitly tell it when they are on since it consults an online TV guide it accesses via a telephone call. Further it will let you pause and rewind a show you are watching live. It can record 80 hours digitally. Some TVs come bundled with a digital recorder. |
|
|
 | recommend Amazon⇒Sony Blu-Ray DVD player |
| asin: B000PALZE0 |
| Sony BDP-S300 Blu-Ray DVD player. You can no longer rent movies to play on magnetic tape-style VCRs with DTV. Instead you use a DVD player. Ordinary DVD players cannot provide the full HDTV resolution. This one can, when it plays the new Blu-Ray discs, at 1080p. Some TVs come bundled with a DVD player, as do home theatre speaker systems. Make sure it is HDTV-Blu-Ray capable. HDMI output. |
|
|
DVD player |
 | recommend Amazon⇒Toshiba DVD/DivX Player |
| asin: B000MXB0TK |
| Toshiba SD-4000 DVD/DivX Player. This can play ordinary and DivX DVDs, often used for ordinary resolution movie rentals. This player provides inputs to a DTV, or a HDTV, but it cannot read the high res HD-DVD or Blu-Ray DVDs. Output S-video. |
|
|
 | recommend Amazon⇒Samsung DVD Home Theater System |
| asin: B000PU5BXG |
| This is a high end six-speaker system, front pair, back pair, center, subwoofer, 1000 watts, optionally wireless, bundled with an HD-DVD. |
|
|
home theatre surround speaker system |
 | recommend Amazon⇒Audiovox DVD Home Theater System |
| asin: B0000A2U5M |
| This is a six-speaker system, front pair, back pair, center, subwoofer, 200 watts, bundled with an ordinary DVD that cannot read HD-DVD or Blu-Ray. |
|
|
 | recommend Amazon⇒Haupauge HTDV tuner card |
| asin: B000MGGTY8 |
This is a cheap way to get HTDV. Fits inside your computer. Uses your computer monitor and computer speakers. It has 1920 × 1080 resolution, 1080i not full HDTV 1080p. It can connect to an over-the-air antenna or a S-Video connection to a cable box. If you buy a tuner make sure it accepts suitable inputs. The catches: - You can’t use your computer while people are watching TV.
- The screen likely won’t be all that big.
- The viewing angle on your screen will be narrower than for a true TV.
- You need to hook your computer up to your stereo to get decent sound.
|
|
|
Computer HDTV Tuner card |
Nobody makes pure DTV tuner cards; they are all HDTV/DTV. |
|---|
Roedy’s HTDV
On 2009-02-21 I bought a 32” inch Sharp Aquos LC-32D44U, 1,366 × 768
pixels resolution. The reasons I picked it were:
Advantages
- Good value.
- Handles HTDV 720p broadcast HDTV.
- I wanted a reliable brand I was familiar with. Sony, Sharp, Toshiba and Samsung were ones I preferred.
- Compared with many other models I looked at, it has accurate colour and a nice crisp image though the CNET
review was not as impressed.
- It does not have a glossy screen. I don’t like glare.
- It has a wide variety of inputs including: HDMI, digital audio, S-Video, analog cable, NTSC and VGA. The connectors at the back are well-labelled. There is an imput for almost
cable/device you have ever heard of. This was a major selling point for me, future flexibility.
- It has solidly built base. The mounting hardware is exceptionally sturdy and of excellent quality.
- Getting it going is simple. You just turn it on, and it configures itself. The menu system is the easiest to use on any TV/Monitor I have ever used. It is also beautiful with
proper fonts.
Negatives
- When you channel surf, the screen goes black for 1.5 seconds between channels. This really slows down channel surfing. This is the main thing I
don’t like about the TV. This is using analog cable. I don’t know how it behaves with digital or HDTV service. I would presume for HDTV service you set the TV on
channel 4 and leave it there, and use the channel changing mechanism in the cable-company provided adapter box. Hopefully, it will not have this delay.
- The built-in sound is bearable, but I decided to hook the sound into my stereo to get decent sound. Unfortunately the remote has no effect on the stereo volume.
- The controls are mounted on the top, but the indicators are along the bottom. It is extremely puzzling how you turn the ruddy thing on until you notice that.
- Does not do 1080p. Given the resolution of the screen and the size of the screen, and the fact TV stations don’t broadcast 1080, I thought that a reasonable feature to
forgo.
- Does 1080i poorly.
Tips
- To configure the four favourites button on the remote, tune to a favourite channel then click menu ⇒ Option ⇒ Favourite CH ⇒ Register
and follow your nose.
- To suppress a poor quality channel, select the channel and click menu ⇒ Setup ⇒ CH Setup ⇒ CH Memory ⇒ Enter ⇒ Down ⇒ Left/Right
to turn skip on or off ⇒ exit.
- To play a DVD, use the DVD remote to play the DVD and on the TV remote, click input ⇒ Select which of the 6 inputs the DVD is connected to.
- The mysterious small round connector beneath the S/PDIF fibre optic digital audio out port is the stereo mini jack from the PC sound corresponding the VGA analog RGB PC video
connector, input 6.
- The remote works best if you point it the green light in the bottom right corner of the TV.
 | recommend Amazon⇒Sharp Aquos LCD HDTV |
| asin: B0012TTX1K |
| Sharp Aquos LC-32D44U LCD HDTV. This is model I bought myself. It is 32’ wide. It has 1,366 × 768 pixels resolution HDTV 720p. Has HDMI input. See further notes above. |
|
Bandwidth
To support DTV and HDTV takes considerably more information since the HDTV image has (1920 × 1080) / 648
× 486 ) = 6.6 times as many pixels per frame (though full 1080p would rarely be delivered via cable and
never by air broadcast). In addition, the cable or broadcaster might provide three or more versions of the program: analog, digital and HDTV. Where does all the extra
bandwidth come from? The HDTV versions could not be broadcast in the same VHF frequency band as the original analog TV station. It must be carved out of new UHF bandwidth. On
cable, the carrier can be creative with agile frequency assignments, assigning frequencies dynamically as needed for the various combinations of programming. This is
transparent to the TV. HDTV always appears to the user as a fixed channel/frequency, usually in the 200s. For a station that broadcasts sometimes in HDTV and sometimes in
normal resolution, all the programs will appear on the HDTV channel. There would be a second channel that always broadcasts in regular resolution. There is no automatic
channel hopping when an HDTV show comes on. HDTV is compressed, that how you can get 10 times a many channels even though each channel taxes 6.6
times as much information.
Besides the air, cable, satellite, and DVD rentals you can also download programming over the Internet sometimes free and sometimes for a fee.
Stages
Here are the stages in evolving TV. The longer you stall to adopt the new technology, the lower the prices will drop.
- Analog TV with analog cable service. Problem with interference on some channels, with mild to severe degradation of picture and sound.
- Analog TV with digital cable service. Removes interference introduced in the cable system. Still has minor interference on the cable from the box to the TV.
- Digital TV with analog cable service. Some channels, usually the local ones, will be quite sharp and clear. Others will be blurry or greyed.
- Digital TV with digital cable service. Removes all interference. You can still get complete loss of picture with a weak signal, but you won’t get snow. You get the full
size letterbox picture broadcast by the TV station.
- HD TV with analog cable service. Some channels, usually the local ones, will be quite sharp and clear. Others will be blurry or greyed. The TV chops the top and bottom of the
analog broadcast off to make it fit on the wide format TV, giving you the effect the camera is always zooming in for a closeup.
- HD TV with digital cable service. No interference. The TV chops the top and bottom of the DTV broadcast off to make it fit on the wide format TV, giving you the effect the
camera is always zooming in for a closeup.
- HD TV with HDTV cable service. No interference. Large clear 720 pixel high picture, at least for shows broadcast in HDTV and for HD DVDs.
- HD TV with HD TiVo with record function. Ability to record shows while you watch another one. Ability to pause shows you are watching live, or replay.
- HD TV with HD TiVo with record function and HD TV and theatre speaker system. Theatre-like surround sound. 720 pixel high picture for broadcasts
and 1080 high for blu-Ray DVDs.
Unfortunately, the more channels there are the lower the quality of the programming content on each channel. Stations with nothing but infomercials may well have technically
crisp images and sound and the latest HDTV. There is a fixed advertising budget spread over more and more channels. The future Internet based on fibre will allow each channel
to have world wide distribution. This should cause the total number of channels to drop, and hence for quality of each channel to rise again, along with tens of thousands of
amateur, low-budget and niche channels, some of which will be available on a subscription basis.
Motorola DCT700 Adapter
Shaw provides a Motorola DCT700 adapter box with its bare bones digital service. I am dismayed by how poorly it is designed. I expect much better from Motorola, after
experience with their superb CPU chips. Its job is to select the channel and provide it to the TV on digital channel 3. It also provides the progam guide, controls which
access to subscription channels and handles pay per view and video on demand.
Advantages
- The unit is tiny.
- You don’t have to precisely aim the remote to operate it.
- If you ever find a show you like, you can find all the other times and channels it also appears.
- Hitting setup twice takes you to a menu where you can search for shows by typing their names. The remote has no keyboard. You type by picking
letters off a grid on the screen. It is slow but not difficult.
- The remote flashes lights under buttons so you know if you are talking the TV, the adapter box, the DVD etc.
- The ergonomics of the remote are very good. Buttons are various shapes and patterns, easy to use purely by touch.
- The setup process is unusually easy.
- There is a music button to take you directly to the music channels.
- When you surf, the box delays turning on the sound for a second or so. This means you avoid the cacophany of phony faith healers etc. as you surf.
- When you surf, even if a commerical is playing, you know what channel you are on, what the name of the show is, and a line telling you a bit about which episode is showing.
This means you can make your selection on two rounds. You don’t have to wait for all the commercials to end.
Disadvantages
- The most infuriating feature is that the program guide shows all the zillions of conceivable channels, not just the ones you are subscribed to. There should be a way to hide
the non-subscribed channels. It takes forever to step through all the channels. You need a piece of paper with a list of all the subscribed channels. Without it, you would
spend your entire time trying to find a subscribed channel. Further subscribed and non-subscribed channels are not differentiated in any way, e.g. with an icon, or a different
colour of background. To find out if you can view a channel, you must select it and wait a second or two. I suspect Shaw does this to deliberately frustrate users into
subscribing. Perhaps they do it to sell more expensive adapter boxes without his appalling defect.
This is not quite true. There are no instructions, but after three weeks of use I discovered by accident you can turn on favourites-only in the schedule grid. Turning it on
has the annoying side effect of jumping to channel 2. Hitting almost any button but up/down arrow takes it out of this mode. You must keep turning favourites-only mode back on
over and over. Spit!
- After hitting channels over and over and being told they are “not authorised” to view them, users might subscribe to everything to avoid the continuous petty
insults. That wording is offensive, implying I don’t have sufficient status to obtain permission. They should say simply “not subscribed”. Could you imagine
how many customers a theatre would get if they put up a sign “You are not authorised to enter’. It is not a matter of getting some totalitarian authority’s
permission, but merely of paying a fee. The blunder may be a result of the unit being designed in China by non-native speakers.
- The second most infuriating feature is modal nature of the beast. Much of the time it ignores you when you key a channel by number, or when you hit the guide
or info buttons.
- You can set up favourite channels, and cycle through them agonizingly s l o w l y. If you hit the favourite button too soon, it ignores you. The
box should remember your command and execute it as soon as it can rather than ignore it. You can only go forward, not back.
- You can add channels to your list of favourites, but if you add one by mistake, there is no way to remove it.
- You can create new lists of favourites, but you can’t remove them unless you know the secret. Hit settings twice, then scroll down and hit setup.
The check and x icons to include exclude favourites don't work. Hit ok instead to toggle inclusion status.
- There are separate buttons for changing channels when you are viewing the guide and when you are viewing a show. Up arrow on the guide gets a lower number channel. Up
arrow when viewing a show gets a higher number channel. Why can’t they make up their minds! The channel change buttons don’t work when
you are viewing the guide. The process of changing channels is infuriatingly slow. Further if you hit the channel change button before it has complete changing to the next
channel it ignores your press. You never know if you just have to just wait some more or if it lost a command. This further slows you down.
- When viewing the guide, there in nothing to indicate which column represents what is showing now. You have to know what day of the week it is and what time it is. Thankfully
there is a clock, but not a current day of week indicator. There are no day of month indicators either.
- The salesperson said the guide would show two weeks in advance. It usually shows only 4 days. It turns out the problem is if ever there is a
momentary loss of power, or a momentary loss of signal, the box erases the entire schedule and downloads it slowly from scratch. The process is preposterously slow, given that
a coax link is available. I would guess it runs at 300 or 1200 baud. Clicking the video-on-demand button also
seems to clear the schedule. The proper way to do it would be to use a checksum to verify the guide data, and keep existing good data, while replacing it with more up-to-date
data.
- Each member of the household can have their own personal list of favourite channels. You can switch between lists. However, the box often switches lists all on its own without
being asked to.
- The favourite button does not work while the guide is showing. You could surf much more rapidly if it did.
- It has so many different modes, and it hops between them in an overly complicated way. Once you get it into an unfamiliar mode, you can’t get back to familiar territory
by hitting a standard button. You have to fiddle around randomly pressing buttors to escape the trap. The problem is it either ignores the basic buttons or reassigns their
meanings in some modes. It is a bit like setting a digital watch. This is largely laziness on the part of the programmer. There is no reason most buttons should not trigger
their ordinary meaning no matter when they are pressed.
- These flaws are so glaring, it occured to me perhaps they are deliberate, as a bait and switch tactic, to sign people up with a cheap box, that they will detest and replace
with a much more expensive one.
- If my partner attempts to use the remote, the TV is soon frozen. No matter what I press, I can’t unfreeze it. I have to power off the box to clear the problem, which of
course loses the entire guide which takes an extraordinarily long time to refresh. All states should pay attention at least to the exit button. The
thing is designed for a computer nerd, not just an ordinary human who wants to watch TV. Perhaps there should be two remotes, the complicated one and a simplified one with no
access to anything complicated, just cycle through the subscribed channels up/down.
- The mute button makes the TV go mute, but not the stereo, which is actually delivering the sound.
- If it sits for too long on the same channel it just freezes and refuses to pay attention to any commands from the remote. Perhaps Mr.Gates had a hand in its design. You have
to unplug it it clear its pea brain.
- The reminder you get when a program you wanted to see starts is purely visual. It does not actually take you to that channel. If you have been listening to an audio-only music
channel while you waited for your show to come on, you will necessarily miss the reminder, ditto for some news channel you listen to but don’t actively watch. There
should be a chime as well.
- I get the impression the box was designed on paper and never tested in the real world by virgin humans — only by its techno-geek designers, who already knew its quirks.
- I muse that the box is deliberately mal-designed to encourage you to upgrade to the more expensive box.
Rant
- The cable/satellite company gets its signals by taking them out of the air way a TV with an antenna would, with a digital signal delivered by satellite (or fibre optic) or
with an analog signal. The cable company pays a fee to American TV stations for this service. However, they pay nothing to Canadian stations. Canadian stations have to make it
totally on advertising revenues. This is unfair, and is part of the reason Canadian stations like CHEK are on the verge of bankruptcy and A Channel just laid out a sizeable
proportion of their employees. We need Canadian stations to provide Canadian content, Canadian local news and Canadian political commentary.
I would prefer more expensive TV service without commercials. When the station works to please viewers, rather than the advertisers, you get spectacularly good results, such
as the Knowledge network in BC or PBS in the USA. I would like it if I could subscribe on a channel by channel basis, or if the set top box monitored my usage of each channel,
and this information were used to reward the channels I viewed most. I strongly resent even a penny of my money going to support crooked religious broadcasting, and other
garbage TV, such as deceptive infomercials.
- Providers do not clearly list what channels you get and do not get with each bundle. For example, Shaw told me that I would get all the analog channels I get now plus a few
more. It turns out I don’t get all of the French language channels, except at extra cost.
- The on-line viewer guide shows you all the channels theoretically available, not just the ones you are subscribed to. Further it does not even mark the ones you have
subscribed to. This means you have to scroll through tons of crud, even the HD channels your box can’t even receive! The intent is to deliberately tantalise and
frustrate you into subscribing to more channels. We need more competition so providers don’t deliberately irritate and screw their customers like that.
- It would be much simpler if you just ordered your channels à la carte, dim sum style. You might get a discount for how many you ordered. I don’t like being pushed
into buying bundles containing channels I don’t want, and don’t want to support. Such bundles greatly complicate configuring. The hardware itself works with
blocking/allowing individual channels. That is how customers think. Why not have billing reflect this?
Future
Here are some features I would like to see standard on future TVs. I want these narrowing features so simple a 4 year old could use them..
Power surfing: there are two buttons on the remote marked
and
.
Hitting either button skips to the next higher channel. If you hit the
,
that channel is temporarily disabled, taken out of the running, until the current program on that channel ends. You might continue until you have it narrowed down to three
active channels. Then you can rapidly cycle between them as the programs play out, by repeatedly tapping
e.g. to find the most
interesting news story at any moment playing on any of three news programs. To help speed the process, the TV knows the daily schedule, and hence can display the name of the
program and the episode in overtext, even when there is a commercial playing. The adapter box has to look ahead to the next channel to surf to get it ready to display to avoid
the usual delay in switching channels.
nut gathering: While you are watching a show, you can tell the TV you really like or really dislike this show by pressing always
then
or
.
For shows you like, it will automatically record that show any time in future it appears (even when you are not watching the TV) on any channel. You then don’t have to
keep track of the frantically changing schedules to catch your favourite shows. When you sit down to watch there will be a fat library of materials waiting for you. The TV
might even be smart enough to go looking on the Internet for content.
If you don’t like a show, and mark it as such, whenever that show is playing, its channel will be temporarily disabled, and skipped over as though it did not even exist.
To deal with the problem of accidentally marking shows as bad, they come back after a week. If you mark them bad again, they stay bad for a month. If you mark them bad again,
they stay bad for a year. If you mark them bad again, they stay bad indefinitely.
The TV records each family member’s preferences separately, and for various groupings of people.
The TV knows the episodes as well as the shows. That way it will not bother to record an episode it already has.
It remembers your preferences, so that when these shows appear in future, it treats them the same way you did last time they aired by default.
reminders: You tell your box about your favourite shows. If I have recording ability, they are automatically recorded, no matter what channel or time.
If you don’t have recording, it flashes a reminder they are currently on some other channel, and allows you with a single button push to jump to it.
This could be implemented by a computer/hard disk in the TV, in a separate TiVo box, or by computers housed at the cable company. The advantage of having the cable company do
it is they can handle backup and recovery automatically. Even if there is a local box at the client site, the cable company should handle back up for you. They don’t
need to keep multiple copies of the same show. One copy will suffice for all customers. This efficiency might lower the cost of the service.
You could subscribe à la carte to individual shows, so for example I could subscribe to Le Plus Grand Cabaret du Mond instead of the entire TV5 channel. Part of the
motivation for this is to give the cable company more precise idea of what content is generating revenue, and hopefully direct money to create more such content. You should
get a discount for letting the cable company precisely monitor your viewing habits.
TV, computer and Internet should be integrated, so that you can use your computer to do all the functions of the remote, with the advantage of mouse and keyboard. E.g. You
could type the name of a show you were interested in and find out when it was playing. You could select shows of interest or ones you never want to see again with a mouse
click, and have your video guide collapse down. The computer might be tied to the TV via the Internet, wireless LAN or cable LAN. You should be able to view video on your
computer, and manage your collection of recordings using the computer and the computer’s mass storage and backup. The computer could keep track of what you watched.
I feel rage every time I turn on the TV or watch a DVD. From the user’s point of view, that is a single atomic command. Surely I should have to press only one button.
But no, you have to press half a dozen to talk independently to the cable box, the TV and the DVD player, in a magic incantation, meaningful only to a technophile. If a novice
gets it wrong, they have to call me to get the system working again. I could spit at the gross incompetence of the sound equipment engineers. Here are the instructions
necessary for anyone else to use my TV even casually:
Turning on TV
- Point remote at the Shaw box.
- Hit TV (upper right).
- Hit Power (red, upper right)
- Hit CBL
- Hit Power
Using TV
- Hit Guide
- Hit FAV
- Hit Up or Down Arrow to change channels.
- Hit OK/Select to view a channel.
- Hit Info to see more about a show.
- To see another channel, go to step 1.
Playing a DVD
- Power on the DVD player on the bottom left.
- Turn right small knob on stereo to DVD.
- Turn left knob on stereo to STEREO.
- Use TV remote. Select Input 2.
- Use DVD remote. Hit Play.
Reverting back to TV
- Turn right small knob on stereo to TV.
- Turn left knob on stereo to STEREO.
- Use TV remote. Select Input TV.
- Use DVD Remote. Hit Eject.
- Power off the DVD player on the bottom left.
Power Off
- Hit TV (upper right).
- Hit Power (red, upper right).
- Hit CBL.
- Hit Power
- If DVD is on, hit POWER with the DVD remote.
Here is what it should look like if the people who designed the equipment were competent:
Turning on TV
- Point remote at the Shaw box.
- Hit TV on the remote.
Using TV
- Hit Up or Down Arrow to change channels.
- Hit OK/Select to view a channel
- Hit Info to see more about a show.
- To see another channel hit Guide and go to step 1.
Playing a DVD
- Hit DVD on the remote.
- Follow instructions on the screen to select episode to view.
Reverting back to TV
- Hit TV on the remote.
Power Off
- Hit OFF.
Internet TV
TV delivered via your Internet connection is very low cost. The catches are:
- It shows on your computer rather than your TV.
- If the internet is congested, the picture will break up.
- The picture will be small. If you blow it up to full screen, it will be low-res. Your Internet pipe does not have the bandwidth to support an HDTV picture.
One company SatelliteToTV offer software for
that will let you access 3000 global channels indefinetely at no additional cost. That sounds too good to be true. Who pays for the bandwidth? I wrote to clarify, but they
just sent me a copy of their on-line FAQ which had no information on any of my questions.