2006-07-01 09:15:41 · 11 answers · asked by micky b 1 in Consumer Electronics ➔ TVs
HD stands for High-Definition. You just have to press the power button to turn it on
2006-07-01 09:17:56 · answer #1 · answered by Λir§trikę X³ 3 · 0⤊ 0⤋
High Definition TV is a digital receiver as compared to an analog TV we all know so well. The versions available now-days have to also include the old analog processing in conjunction with the digital. This of course keeps the costs up, and maybe one day there will be TVs that is all digital, but then you will never get to watch your VCR or old video games. Currently the only way to truly enjoy the miracles of HD is to watch a show that was recorded with a HD camera (Gone with the wind will suffer because digitizing the movie will cause artifacts, or errors) using a HD tuner. The tuner may be built into the TV or external like a cable box or satelite. They are making HD recorders (hard-drives) and some DVDs emulate the higher frequencies. The frequencies used cause all the differences in the quality of the picture. Just as the first Atari games compare to the news systems out today. Your old TV was 480i (i=interlaced) the next step up is 480p (p=progressive), this is only available with a digital TV. Most new DVDs put out this format and the difference is very noticeable. The next step up is 1080i, over twice the frequency as your old TV. Then comes 720p and finally 1080p. The 1080p is done currently (in the consumer models) by vibrating a mirror. It isn't a true 1080p until they start recording with 1080p cameras, so the picture isn't as sharp as you might expect (I've seen them and that's my opinion)
2006-07-03 11:20:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋
HD is high definition TV, which is digital imaging. Supposedly the quality of the picture is vastly improved.
In most cases the only way you get HD if you have cable, at least Cox, is to pay extra. Truthfully I don't know how is works but I know if you google it you will get more information than you need.
If you are considering buying an HDTV, remember there is HD, HD ready and HD compatible. With the last two you have to have a converter box. Much like color TV was years ago, eventually all TV will probably be HDTV.
Good luck
2006-07-01 16:21:09 · answer #3 · answered by banananose_89117 7 · 0⤊ 0⤋
The answers about higher resolution are correct. Standard Definition (digital) television has 480 horizontal lines, while high definition can have either 720 or 1080 horizontal lines; the number of pixels per line is also higher. There are other features of HD that should be mentioned: Wide screen, progressive scan, and Dolby Digital surround sound.
Note (I just saw the reference to 512 lines): A standard analog television does have 512 scan lines, but only about 480 are actually used to display the picture; the extras are used up in the vertical retrace interval and are blanked out. In analog TVs you can see the retrace lines if you turn the brightness up too high.
Note that digital television does not necessarily mean HD. Even while watching a HD program, the commercials are usually in SD (although that is slowly changing).
2006-07-01 20:05:58 · answer #4 · answered by gp4rts 7 · 0⤊ 0⤋
HD tv is like ordinary tv but, has a higher number of pixels (dots) that make up the picture. Hence the full name high definition. A HD Tv is simply a tv which can display this new type of picture. HD TV was created, because poor picture quality occured with bigger TVs, Iike the one u see in currys that are bigger than your children and cost about 4 grand. this is the same as when you blow a picture up too big, the quality becomes poor.
2006-07-01 16:22:16 · answer #5 · answered by mattb77 3 · 0⤊ 0⤋
A regular TV has 512 lines which make up the picture. A HD TV has more lines; hence more definition.
2006-07-01 16:22:42 · answer #6 · answered by fingerpicknboys 3 · 0⤊ 0⤋
High-Definition TV sets are built with a higher count of pixels to increase the resolution {Sharpnes} of the picture. And no, you don't have to press any button to turn it on. They're built like that.
2006-07-01 16:19:56 · answer #7 · answered by lelekid4ever 5 · 0⤊ 0⤋
its a tv with a sharper picture than a regular tv. it often works the same as a regular tv except with more "dots" of light that make up the picture
2006-07-01 16:19:49 · answer #8 · answered by Cameron 3 · 0⤊ 0⤋
High Definition TV, better quality image is streamed.
2006-07-01 16:29:16 · answer #9 · answered by ag_iitkgp 7 · 0⤊ 0⤋
It just has more pixels on the screen and possibly a higher rate at which the images refreshes (I'm guessing). Basically it's just a better quality picture, supposedly.
2006-07-01 16:19:24 · answer #10 · answered by Anonymous · 0⤊ 0⤋