They're not doing it now but I like it when they run old black & white shows in the middle of the night. I can't wait to see kinescopes of What's My Line in HD It was a different world when Bennett Cerf could be a celebrity.
Some of the die hard game show fans I know are complaining about how the GSN HD feed is stretching classics like Dawson Feud, Match Game, Pyramid, etc. IMO, it looks cool that way.