> I don't know who designed HDTV, be he must not have been much of an
> expert.
Expert in analog television perhaps. The ATSC specs in particular just
don't make much sense to me in a digital context. I think the FCC just
had existing proposals for analog HDTV, saw an opportunity to "free up"
(that is, sell off) bandwidth by going digital and rushed to a hybrid
standard which is pretty much universally despised.
> 1080 content is often broadcast as 1080, i.e. encoded as 1088 and
> cropped to 1080 at playback time. Yes, it suffers from all the
> inefficiency normally associated with non-mod16 encoding.
I couldn't find any references to 1080i broadcast streams with vertical
resolutions other than 1080 in the wild. Unfortunately, I have to rely on
scrounged information since I don't have access to DTV broadcasts and,
unless or until I move, never will.
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