100's of Dubbed from TV VHS Tapes (Woxall)

What do I do with 100's of TV dubbed movies and documentaries? My 93 year old uncle thought these would be worth something one day, but my thinking is they cannot be sold. I am helping my uncle downsize and he has 100's of dubbed VHS tapes (also some Betamax). Does anyone want them? Some of the recorded show are about Frank Sinatra, Luciano Pavarotti, Grace Kelly, Larry King, to name a few. There are some movies like "That's Entertainment," "The Battle of the Bulge," and "When Harry Met Sally." Anyone??