At one point in an early Simpsons, Homer comes across an old issue of TV Guide, and finds the listing for the sitcom Gomer Pyle, U.S.M.C. ‘Gomer upsets Sergeant Carter,’ he reads — adding with a fond chuckle, ‘I’ll never forget that episode.’ Even for British viewers unfamiliar with the show, the joke is clear: that’s what happens in every episode.