In terms of the Paley Center:
First, it should be noted that the catalog is available online (it wasn't when I was first going there around fifteen to twenty years ago)- it is probably a good idea to check this ahead of time, as under current circumstances they tend to include time reading the catalog with your scheduled time (they didn't when it was viewing tapes in the back room):
https://www.paleycenter.org/collection-2/In terms of some stuff that may be of interest in the television game show realm:
As mentioned before, there are several episodes of game shows from around 1975 that exist in off-air recordings by Andy Warhol (apparently with a project in mind, though I haven't seen more precise details of what this was meant to be), largely of programs for which these are among the few existing examples.
There's also a set of game show recordings from 1978 that came from the San Diego NBC affiliate as part of an example of a full broadcast day, should that sense of continuity be of interest.
One of the episodes of Pantomime Quiz has interest, as, based on a couple of internal clues, I think it could be an episode before any of the national runs.
This episode of Information Please has intrigue- it doesn't correspond to anything that appears in any standard listing (it doesn't seem like it could be a pilot for the brief television run, and clearly isn't one of the 1940s short subjects), and I don't think we've ever figured out its origins.
This program has interest, for those curious as for what a local game show could do in the 1980sThere are also multiple unsold pilots that aren't in circulation (to the best of my knowledge, at least) present-
anyone for Robert Q. Lewis with contestants playing something that resembles mahjong?The one warning I have- it has been a substantial time since I've been in the Paley Center (my last visit was to the defunct branch, and that's four-and-a-half years ago now), so I have nothing to say about their current practices.