Where are the documentaries on the history of HDTV, YouTube has none at all... // How will local stations in the US commerate the end of System-M?
Max Power
all...
Television went thru many convolutions to get to MPEG2/MPEG4 DTV, many
successful (NICAM, PAL, D2-MAC) many nearly perfect (Teletext, MUSE-HDTV)
and some almost complete failures (Ghost cancellation signal, HD-MAC).
Except for bandwidth and power issues, MUSE could have won the HD technology
race ... providing computers were not developing along Moore's Law. The MUSE
audio subsystem has vanished into history, a forgotten step on the way to
MPEG2 (aka Musicam) and MP3 and AAC audio compression schemes.
NTSC and PAL, if you went via version numbers are around 3.1 Mod A.
Selective access via scrambling and encryption have also contributed to
broadcast TV's development, as the 8VSB scrambler must have benefitted from
analog scramblers for NTSC uniquely saturating TVRO spectrum -- coupled with
similar success with NICAM scrambler.
Even the Voyager Programme, with its Viterbi + RS coder contributed to
making MPEG transmission robust.
Modern ECC coding for TV is worthy of NASA or ESA use, as near perfect real
world ECC codecs.
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How will local stations in the US commererate the end of System-M?
-- This footage is how the BBC commererated the end of System-A:
http://youtube.com/watch?v=sG52HcgKaD4
-- I assume RTE (Ireland) had a similar commereration.
-- All of the video commerations should be put into a GNU pool, reasonably
free of copyright or IP issues.
-- In each market, the NTSC transmitter shutdown will be historical, thus
the need for related programming.
Guru
simply don't care and don't realize all the technology that's been developed
in a short time to make HDTV a reality. We'll probably see more programs on
this topic in a few years, when there is some perspective on the transition.
"Max Power" <mike...@washington.edu> wrote in message
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