hwc
In the Starting Line-Up
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AzPatsFan said:Besides, there is HDTV and there is HDTV. 720i (interlaced), is just a halfway measure, yet it can still be called HDTV.
True HDTV is 1020p (Progressive) and the only one that truly counts. How many bradcasts now are in that format?
Just a couple of factual corrections. There are two HDTV broadcast standards in current use:
Progressive scan: 720p
ABC, ESPN, National Geographic HD
Interlaced scan: 1080i
CBS, NBC, PBS, Discovery HD, HBO, Showtime, Starz, INHD, et al
There are some theoretical advantages and disadvantages to both formats. However, both can (and do) provide utterly stunning video quality. Any issues with poor quality HDTV video have absolutely nothing to do with the limitations of either of these broadcast standards.
Virtually all CRT-based HDTV sets display 1080i as the native resolution and convert 720p signals to 1080i for display. Virtually all digital HDTV sets (LCD, Plasma, DLP) display 720p as the native resolution and convert 1080i signals to 720p for display.
720p versus 1080i is really a non-issue.
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BTW, Dolby Digital is the defacto standard for audio HDTV audio streams in the United States. The issue is whether or not the audio is mixed in Dolby Digital 5.1 surround or Dolby Digital 2.0 stereo. Not all local affiliates are equipped to pass-thru a DD5.1 audio track.