What is HDTV?
HDTV, an acronym for High Definition
Television, is an entirely new way of transmitting and receiving
a television broadcast signal.
HDTV
uses the same amount of bandwidth (six megahertz) as used in the
older analog system. HDTV, however, can transmit more than six
times the information as the old system: this translates to higher
quality in both picture and sound. In
terms of picture quality, it is the 1,080 line HDTV image that
will drive consumer demand for these sets along with an unbelievable
Dolby Digital surround sound system. The current analog televisions
sets produces a resolution of 525 lines that are scanned horizontally.
This
new resolution adds more pixels to your screen. Current analog
sets contain about 300,000 pixels, while the HDTV screen is composed
of more than 2 million pixels. Almost all the new digital television
sets will be front and rear projection systems ranging in size
from 55 up to 73 inches. Sony will have a 32 inch glass direct-view
tube set, but it will not be able to display full HDTV images.
Sony is trying this marketing strategy to establish a consumer
friendly price point.
HDTVs
will also look dramatically different from existing television
sets because their screens are rectangular, not square. While
today's TV sets are shaped with an aspect ratio of 4 wide by 3
high (4:3), HDTVs are 16 wide by 9 high (16:9). The rectangular
screen allows HDTV images to look more like the ones you see in
a movie theater.
HDTV
Programming
Click here
for programs that are available in HDTV format.
