Short for high-definition television, HDTV is a generation of television first approved by ATSC on December 24, 1996, that offers higher resolutions and clarity.
The HDTV standard defines display resolutions of:
- 1080i (1,080 lines of pixels in an interlaced configuration)
- 720p (720 lines, progressive)
- 1080p (1080 lines displayed progressively)
1080p technically falls into the category of FHD (Full High Definition), not HD like 720p and 1080i. But, a television with this resolution is still called an HDTV.
HDTVs are displayed on a wider screen because of the 16:9 aspect ratio although not all wide screen displays are capable of displaying HD. The picture is an example image of a 1080p HDTV, the Panasonic TH-58PZ750U.
The cutoff date for the last analog signal to transmit was June 12, 2009. After that, all broadcasts moved to digital high-definition in the United States.
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