Frequently Asked Questions About HDTV

Are Local TV

Stations

Broadcasting in

HDTV?

Why Are Some HDTVs 4:3 Aspect Ratio and Others 16:9?

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).

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.)

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