Back in the summer of 1968, ABC aired a prime-time game show called The Generation Gap, which pitted teens against adults (maybe in the same family) to see which side knew more about what the opponents already knew. For example, a youth might be asked to name the Marx Brothers while an adult might be asked to name the musical guest on that evening's show (on the edition I watched, it was Tommy Roe). Or another youth might try to operate an old-fashioned can opener.
I think ABC might be wise to bring this one back for a limited run, given the fact that there are so many baby boomers who don't know things millennials know and vice versa.
Ellen DeGeneres periodically does something like this on her daily show and she might serve well as host for a nighttime revival (Dennis Wholey hosted the original). What do you all think?