Seinfeld ran on NBC from 1989 to 1998 and became known for using short musical cues instead of a traditional theme song during episodes. Composer Jonathan Wolff created the improvised slap bass lines, varying them slightly for different transitions throughout the series. The riffs, performed on a synthesized bass, helped define the show's quirky pacing and stand-up interludes. Decades later the sound is widely reused online as shorthand for a classic sitcom scene change, instantly recognizable even to viewers who never watched a full episode.