Understanding High Definition TV
High-definition television refers to a technology that enables viewers to watch TV programs and movies in higher resolution than traditional TV. The higher resolution means that HDTV pictures appear clearer and sharper.
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Features
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HDTVs have a higher resolution than traditional TVs, which means that HDTV screens contain more pixels. For example, a 1080p HDTV has a resolution of 1,920 pixels wide by 1,080 pixels high. In contrast, a traditional 480p TV is only 852 pixels wide and 480 pixels high. The higher pixel count of an HDTV allows it to portray images more precisely and sharply than a traditional TV.
Considerations
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All DVDs will look sharper on an HDTV than a traditional TV, but channels that don't yet broadcast in high definition won't look as sharp. In fact, some programs may look worse on a HDTV than a regular TV because the high resolution of HDTVs makes flaws more visible.
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Misconceptions
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Digital television (DTV) is not the same as HDTV, although DTV also offers improved picture quality. The United States switched to DTV broadcasting in June 2009.
Expert Insight
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HDTVs cost more than traditional TVs, but because all programming eventually will be broadcast in high definition, a consumer purchasing a new TV should choose a HDTV, according to CNET Reviews. Plasma, liquid crystal display (LCD) and light-emitting diode (LED) screens are available in HDTV format.
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