Obscurity factor: 8
Charades swept the nation as a party game in post war America. Was television - the slave to all trends - to be far behind? Subsequently retitled Stump the Stars, this series brought together television and film personalities in two teams of four to play Charades with clues sent in by viewers, who won a gift package from the sponsor if their clue was chosen.
Above is part 2 of an early episode featuring Elaine Stritch and Hans Conried uploaded to YouTube by dentelTV1. I've set it to start at Elaine's spot. Though the series started in 1947, this dates to sometime in probably the early 50's. There are other episodes to see on YouTube and it can be found in classic game show complation DVDs.
Obscurity factor: 8 (dimly remembered, on DVD in compilations, available on YouTube)