Today's Cat and Girl is a good one; it extrapolates
Happy Days and
That 70s Show into a prediction of 1990s retro:
Come to think of it, a sitcom about slacker/hipster ironist zine kids in the 1990s could probably work. (I imagine there's laugh-track material to be extracted from anachronisms like the characters not having LiveJournals or blogs and relying on photocopied zines to get their thoughts out, having to take film to be developed, and so on; there could also be product-placement opportunities for FedEx/Kinko's or such.) It'd probably end up looking like a more polished version of Clerks or various low-budget American indie films that followed.