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Five Benefits of Owning an HDTV
High Resolution
HDTV offers a higher resolution than most conventional television sets. In
addition, HDTV's can display full HDTV and DTV signals, which results in a
sharper picture.
Analog televisions have approximately 480 active scanning lines. This results in
a resolution of about 330 lines. A VHS VCR has approximately 240 lines of
resolution. This is why VHS doesn't look as clear as the original picture. DVD's
provide about 480 lines of resolution. HDTV's, on the other hand, provide about
twice as much resolution as an analog television.
HDTV is part of the DTV specifications set forth by the FCC. Many video
resolutions fall within the umbrellas of DTV. The two main resolutions are 1080i
and 720p. For both, every second has 60 frames of video. Interlaced resolution
transmits 30 frames of even lines, then 30 frames of odd lines every second.
Progressive resolution, on the other hand, puts 60 entire frames on the screen
every second.
An HDTV with 720p resolution has 1280 x 720 pixels, for a total of 921,600
pixels. The 1080i has a resolution of 1920 x 1080 pixels, which totals 2,073,000
pixels. Some people prefer the 720p resolution because it provides a more stable
picture, claiming the 1080i resolution can cause a flicker effect. The 1080i
resolution, however, provides a far greater number of pixels. HDTV receivers are
capable of receiving both types of resolution and converting them to the format
used by the television display. Either way, the resulting resolution on an HDTV
is far supreme to the picture found on an analog television.
No Scanning Lines
The 720p resolution provides a crystal clear image and almost completely
eliminates scanning lines. This is because, as explained above, the 720P
resolution produces all 60 frames of video every second. Despite the fact that
the 1080i rotates 30 frames every second, it, too, has much less visible
scanning lines because of its use of interlace scanning.
Better Sound
HDTV offers digital audio and CD quality surround sound, creating a much clearer
listening experience. Just like CD's produce a better sound than audiocassette
tapes, the digital audio sound of HDTV is better than the sound provided by an
analog television. In addition, Dolby Digital 5.1 included in many HDTV
programs. To take advantage of the surround sound, however, it is necessary to
have 5.1 speakers.
Panoramic View
High Definition TV's provides a much larger viewing area than regular analog
television. The majority of analog television sets are produced with a 4 by 3
aspect ratio. This means that the screen is 4 units wide by 3 units high.
Theatrically released movies, however are generally produced in a much wider
aspect. This is down in order to take advantage of the field of vision, which is
wider horizontally than it is tall. Because HDTV signals are transmitted in a 16
by 9 aspect ration, it is more like the screen used in movies. Therefore, HDTV
viewing is more realistic and panoramic.
Wave of the Future
The FCC has passed a multitude of regulations regarding HDTV. Among these
regulations is that all television broadcasts must be transmitted in HDTV by
2006. Analog televisions, however, will not be able to take advantage of this
technology.
Consequently, HDTV allows the viewer to view his favorite television shows in
HDTV format, creating a more real life experience, with a clearer, crisper
picture. In addition, most cable companies now offer HDTV as a standard part of
their cable package. Therefore, consumers don't have to purchase a special HDTV
television or an HDTV-ready television with an HDTV set-top-box.
In addition, new videogame system consoles are taking advantage of HDTV,
claiming the graphics of the games themselves will be clearer when played on an
HDTV television. HDTV tube televisions are also better than plasma televisions
for the videogame player because plasma televisions will experience what is
called color burn on their plasma televisions. Color burn is when an image is
permanently burned into the television, just like what can happen to a computer
monitor if it doesn't utilize a screen-saver.
With all of the benefits of HDTV, it is little wonder most consumers are making
HDTV television sets their next television purchase.
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