Seinfeld, the American sitcom that ran on NBC from 1989 to 1998, used short slap-bass interludes instead of a traditional laugh-track transition to move between scenes. Those brief musical bumps became part of the show's identity and, long after it ended, a shorthand for sitcom timing online. Editors reuse them in memes, reaction videos and TikTok edits to mark a scene change or an awkward beat, much like the Law and Order sting marks a shift in a drama. The familiarity is the point: a few notes instantly set a 1990s sitcom mood.