|What is HDTV
More and more programs are being
created in HDTV as producers move into this new exciting medium. Some programs are
produced in the standard definition (SD) format and are then up-converted to HD prior to
transmission. Other programs and movies originated on film are converted to the HD format
for transmission. Currently, the channels available in HDTV typically make up their
programming schedule with a mix of program content from these three production sources. Consequently, viewers may notice differences in
picture format (aspect ratio), resolution and sound. HDTV uses a wide screen format or
aspect ratio of 16x9, (16 units wide by 9 units high) which appears more natural to the
eye than the 4x3 aspect ratio of most existing TVs.
The widescreen of HDTV is ideally suited for movies and sports. Many new programs are
being created in this format, while others continue in the 4x3 format. On a 16x9 screen of HDTV, a program created in 4x3
screen format will result in black bars on
the two sides. Up-converted programming may
also appear soft compared to programs originated in HDTV, as HD contains 5
times more information than conventional TV.
Only programes originated in HDTV
will fill the screen fully and bring that true sense of being there and
increasingly, Canadas networks and studios are moving towards the goal of digital
HDTV production, which will mean a better viewing experience for everyone.
For information on the HDTV
programming available in your area look in the HDTV Programs section of this site.