On The Tonight Show, Johnny Carson once did a sketch where they were “retiring the Dolly Parton Jokes”, which they did in a skit where they threw out every Boob Joke they could. At the start of the skit they went to the Grave of Retired Jokes, where Carson read a few that had seen their day, like Euell Gibbons jokes and Tiny Tim jokes. Sadly, I can’t recall any of those jokes. All I can remember are the Dolly Parton gags.
And I really do think they stopped making those Dolly Parton gags after that. Maybe Parton said she wouldn’t appear on the show anymore if they kept doing it.
In case you weren’t around or paying attention in those days, VP Dan Quayle was considered something of a joke. Compared to him, Sarah Palin was taken very seriously.
In this thread, someone uses the old “didn’t know Paul was in a band before Wings” joke. But it’s a joke that really doesn’t make sense anymore, even as a joke, since I’m sure you’d be hard-pressed to find even the most pop-culture history challenged kid who doesn’t know who The Beatles were, while I’m sure you wouldn’t have to try very hard to find many, many young people who have no idea who Wings were.
Granted, even when the joke made sense, back in the 70s, I know it wasn’t meant to be taken seriously (it being a joke and all), but at least then, pretty much everyone would have known who Wings were.