Oddities, Rareties, Un-Findables, etc

I’ve decided to make a trek to the New York Museum of TV and Radio sometime in the next month–with the main intention of seeing Peckinpah’s TV adaptation of Noon Wine, which seems to be entirely unavailable otherwise. If you had the chance what other TV or film items would you look for–what’s not available currently, even by the wily pirates on ebay??