[quote name=\'Matt Ottinger\' post=\'146019\' date=\'Feb 15 2007, 05:13 PM\']
[quote name=\'SRIV94\' post=\'146006\' date=\'Feb 15 2007, 04:15 PM\']
[quote name=\'Jimmy Fiono Coyne\' post=\'146000\' date=\'Feb 15 2007, 02:52 PM\']
Does anyone know just why programming from all 3 networks were preserved on the dates 3/28/73, 4/5/73, & 4/13/73?
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Maybe something Watergate related, where news divisions might've taken over?[/quote]
That was my first thought, but while the era is close, the televised Watergate hearings didn't happen until May of 1973. My guess -- especially since they all seem to be in black and white -- is that it was done for some sort of academia research project. Some university-based researcher getting himself some representative samples of programming using whatever primitive recording devices he had available to him at the time.
[/quote]
First off, in addition to 3/28/73, 4/5/73, and 4/13/73, the broadcasts of 3/12/73, 3/20/73, and 4/21/73 also exist, as does a set from 3/8/71, 3/16/71, 3/24/71, 4/1/71, 4/9/71, and 4/17/71.
Notably, these recording dates (in both 1971 and 1973) work in such a way as that it is a week's worth of programming, with a recording made for each day of the week.
Due to this range, while agreeing with the research part of the suggestion, I would suggest that these recordings were probably made by and/or for the UCLA media department, rather than for any individual.