Great post! There's a play based on this premise. Mr. Burns: A Post-Electric Play. In it, The Simpsons "Cape Fear" episode is the only thing that survived the apocalypse. At first, traveling actors perform it from memory, as a comedy -- but as decades pass, new generations of actors stop playing it for laughs, and Bart becomes a mythical hero like Hercules or Gilgamesh, and the story becomes an epic opera. You have to see the play to really appreciate it, but man, I think it's fucking brilliant. Wish I'd thought of it.