7
HDTV vs SDTV
You have several options for connecting your TV to entertainment devices.
The connection option you choose depends on the type of TV you have and
the entertainment devices you want to connect to your TV. For the best
results, read this section to learn more about HDTV and SDTV connection
options and screen resolutions before you begin to connect the 8000HD to
your entertainment devices.
Be Prepared
What Are the
Differences
Between
Widescreen TVs
and Standard TVs?
The widescreen TV is 1/3 wider than a standard TV. The widescreen TV
aspect ratio is 16:9 (compared to 4:3 for SDTV).
HDTV uses a much finer screen resolution to create the TV picture—
1125 lines for HDTV compared to 525 lines for SDTV. This means
that the screen resolution for HDTV can be up to 1920x1080 pixels,
compared with 720x480 pixels for SDTV.
In the USA, HD programming is always broadcast with digital signals. SD
programming is currently broadcast in both digital and analog. (However, HD
programming and digital SD programming do not use the same digital
signal.)
Generally, all HDTV-ready monitors or integrated HDTV sets are capable of
supporting an SDTV 480i or 480p signal. Not all HDTV monitors support
both 720p and 1080i HDTV signals. For instance, some plasma screens only
support 720p.
What Are Screen
Resolutions?
For this reason, the 8000HD needs to know the screen resolution that is best
for your TV. If the 8000HD is not set up to provide video in the proper screen
resolution, you will see a black screen or a distorted picture when you turn
on your TV.
The 8000HD provides video in the following screen resolutions.
You want to set up the 8000HD to provide your TV with the best picture size
and format that your TV supports.
Your cable service provider broadcasts programming in SDTV or HDTV
format. The screen resolution that your TV supports determines how the
program will look on your TV screen.
SDTV Screen
Resolutions
HDTV Screen
Resolutions
•
480 lines, interlaced (480i)
•
480 lines, progressive (480p)
•
1080 lines, interlaced (1080i)
(This is the default setting for the 8000HD.)
•
720 lines, progressive (720p)
