I wanted to make this topic because the subject is something I've been thinking about quite a bit lately. "Not aging well" can take on various meanings, like jokes not being understood by modern audiences, situations totally irrelevant to modern society, or the source material simply not being taken seriously anymore. I think there are even more examples you people can think of. So basically, as the title says, what hasn't aged well, and what modern works do you think won't age well?
One example I can think of is shows or movies that are over-reliant on pop culture references or topical humor. Granted, there are some exceptions, like the Simpsons, SNL, etc. But I don't think audiences 10, or even 5, years from now will get "ermahgerd" jokes, like the one that was made in an episode of 2 Broke Girls.
You may not agree with me, but I'm just wondering what people here think.