Scientific Atlanta Explorer 3250HD, Руководство пользователя

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Many local TV stations are transmitting digital signals.
However, transmitting a digital signal does not mean
transmitting an HDTV signal. Some stations are using the
new bandwidth to broadcast several standard-definition
channels. Most stations however, once they begin
broadcasting in digital, are offering HD content from their
parent network (for example, CBS, ABC, NBC, Fox, WB,
UPN, PBS).
Are Local TV
Stations
Broadcasting
in HDTV?
Why Are Some
HDTVs 4:3
Aspect Ratio
and Others
16:9?
The aspect ratios differ because the television industry
manufactures both standard and wide-screen HDTVs to
appeal to consumer viewing preferences.
• On wide-screen HDTVs, the programming is displayed
on the full screen.
• On standard HDTVs, the programming is displayed in
letterbox format in the middle of the screen. (There are
bars surrounding the picture.)
Frequently Asked Questions About HDTV
Frequently Asked Questions About HDTV