The cameos on Billions are funny because sometimes I’ve never even heard of the person but I can tell it’s someone famous IRL because the acting is suddenly wooden and awkward.
As an adult, whenever I'd hear a piece of classical music on the radio or at a concert, I'd have an "Aha!" moment from when I heard it in a Looney Tunes cartoon.
I think adults today will be that way with classic movies & TV shows when moments trigger memories of old memes.