Seinfeld was an American sitcom that ran through the 1990s, famous for its observational humour and for using short slap-bass phrases instead of a traditional laugh-track transition between scenes. Those brief musical stings became one of the show's most recognisable signatures, and clips of them spread widely online as creators reused them to mark scene changes and punchlines. The riff still works today because it instantly signals classic sitcom timing, even to viewers who have never watched a full episode.