firepoint525 said:
Channel 13 in Memphis used to run it during the after-school hours back in
the early '70s...(snip)...This is when I saw the show.
That would have been a 16mm reduction print, as opposed to the
original 35mm print from its network airing(s).
There was an FCC reg that if you were running something in B&W
for any substantial length of time (such as a half-hour program),
you had to turn off the color burst, which you could do either on
the film chain or the video switcher. I believe there was also a
"mono + burst" setting on the film chain.
My recollection is that B&W video tapes did not transmit burst.
IIRC, this reg was later modified when it became the norm for
stations to feed their signal through a frame synchronizer, which
fed burst. You still didn't want to leave the color on a B&W film
as it caused the green (or other color) tint that's been discussed.
The frame synch cleaned up a lot of loose ends, such as low-end
VTRs without a TBC, live remote trucks, and of course the network
feed. We've previously discussed the pre-frame synch days of the
video "roll" when you took the net out of a station break (which is
why you always wanted to hit the net in black, bong or no bong ;D),
or that you had to "gen lock" to the network to super an ID.