Definition of high-definition television High-definition television
We found 4 definitions of high-definition television from 3 different sources.
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What does high-definition television mean?
WordNet
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| high-definition television - a television system that has more than the usual number of lines per frame so its pictures show more detail | ||
| HDTV | ||
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Wiktionary 
- high-definition television (Noun)
Any or all of several formats of television system having a higher resolution than traditional ones. - high-definition television (Noun)
A television set that employs such a system.
Wikipedia 
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High-definition television (HDTV) is a new television broadcasting system which uses a higher resolution than a normal television. With HDTV we can watch television in higher quality than old television, giving a more vivid and clear screen.
Most HDTV systems use digital signals. And HDTV has a 16:9 aspect ratio. This is different than SDTV (standard-definition television) which uses analog signals and a 4:3 aspect ratio.
HDTV picture resolution is at least twice that of SDTV, so it can present a more vivid screen than analog television or DVD. HDTV can control resolution efficiently.
