We may receive a commission on purchases made from links. Originally aired beginning in 1974 -- just one year after "American Graffiti" put George Lucas on the map and made the 1950s cool again -- ...

At 50, the classic sitcom is the model of a kind of nostalgia that’s as much about what we forget (the bad stuff) as what we remember. (Aaaay!) Credit...Doug Chayka Supported by By James Poniewozik ...