Heh heh. Many of the old issues, still being discussed. For what it's worth,
and for those who might not know, there has been a heck of a crunching down of
spectrum, for US OTA broadcast stations. It is now common to see two major
stations in a market, sharing a single 6 MHz channel. (The stations continue to
use their old channel number for ID, but it's what they call a virtual channel.
So users are universally unaware. You can tell best by doing a manual channel
scan, or look up the frequencies at the FCC site.)
More to the point, it is common to see these two stations both broadcasting HD,
in this shared 6 MHz channel. And both also broadcasting a complement of 480i
SD programs, all in that same, shared, 6 MHz channel.
Well, guess what. The HD streams can be either 720/60p or 1080/60i, and still
fit into that single 6 MHz channel, shared with several SD streams. And the HD
looks like good HD, to boot.
All of this, using 8T-VSB cum MPEG-2 (H.262) compression. These religious
battles can rage on, year after decade. Even in the face of evidence that the
religion is, as always religions are, egregiously overstated.
Stay safe. Wash hands. Keep a distance.
Bert
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