HDTV – HDTV Explained

HDTV – HDTV Explained
By Lucy Bartlett

You have probably heard of HDTV but you may be confused by all
of the new terminology.
The maximum resolution on a standard analog TV is 720 X 480
pixels, which is about 337,000 total pixels. HDTV is part of the
Digital TV specifications which has many different video
resolutions. The two main resolutions to be concerned about are
720p and 1080i. The "p" means progressive and "i" mean
interlaced, in both resolutions every second has 60 frames of
video.

Progressive resolution puts 60 full frames on the screen every
second. Interlaced resolution puts 30 frames of only odd lines
and then 30 frames of only even lines up every second. Some
people find that the interlaced video causes flickering.

The 720p video resolution is 1280 X 720 pixels, which gives
921,600 total pixels and the 1080i video resolution is 1920 X
1080, which gives a huge 2,073,000 pixels.

It is personal choice as to which resolution you prefer, the
best way of finding out is to go down to your local retailer and
look for yourself.

The sound on HDTV will sound better than it did on your analog
tv, some HDTV programs include Dolby Digital 5.1 surround sound,
but you will need the relevant speakers to be able to take
advantage of this.

You will have to buy a new HDTV. Some HDTVs come with built-in
tuners, while others do not. The tuner converts the signal into
something that your TV can recognize. HDTVs that do not come
with a tuner are commonly called "HDTV Ready." An HDTV without a
tuner is worthless.

It is possible to view HDTV on your pc, you can do this with
ATi HDTV Wonder, it comes with its own antenna to pick up
airborne HDTV signals, it also has inputs for cable and
satellite signals. A benefit of this is that you can play and
record any show you want on your computer.

Find more information at http://www.whathdtv.info

About the Author: Lucy Bartlett is a proud contributing author.
Find more articles at http://mindbodyandsoulportal.info/ For
more info visit http://whathdtv.info/sitemap.php or
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