"HD-MAC"
Wiki:
"Because UHF spare bandwidth was very scarce, HD-MAC was usable "de facto"
only to cable and satellite providers, where there bandwidth was less
constricted. However, the standard never became popular among
broadcasters.
For all this, analog HDTV could not replace conventional SDTV
(terrestrial)
PAL/SECAM, making HD-MAC sets unattractive to potential consumers.
HD-MAC could be decoded by a standard D2-MAC receivers(SDTV), but in that
mode only 625 (576) lines and certain artifacts were visible. In order to
decode the signal in full resolution, a specific HD-MAC tuner was
needed....
In the 1992 Summer Olympics, an experimental HD-MAC broadcasting took
place.
100 HD-MAC receivers (in that time, retro-projectors) in Europe were used
to
test the capabilities of the standard."
RIP
http://en.wikipedia.org/wiki/HD-MAC
- -
"Even the sharpest ear cannot hear an ant singing." - Sudanese saying
So, Ant could be currently listening to songs. ;-)
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