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Chapter 27. Watching Digital Television: HDTV > Features and Considerations

Features and Considerations

When you shop for a digital television, you’ll notice that sets are labeled as either HDTV ready or HDTV capable. An HDTV-ready set has a built-in tuner to accept digital signals, whereas an HDTV-capable set requires an external set-top box to do the conversion of the signal.

Because most broadcasts are currently over the air, you’ll also need an antenna. To find out which stations carry HDTV programs, you can check some of the links below. The networks typically provide a list of the stations and cities where HDTV is available and will also tell you what format is used and whether Dolby AC-3, which is the Dolby Digital surround sound, is supported. For example, ABC is broadcasting in most major cities using the 720P format and Dolby AC-3.


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