Law and Order premiered on NBC in 1990 and became one of American television's longest-running crime dramas, with its scene-change sting becoming almost as famous as the show itself. The two-note sound marks the passage of time between police investigation and courtroom scenes, and viewers quickly learned to associate it with a serious turn in the story. As clips and edits spread on TikTok and YouTube, creators began using the sting on its own to give everyday moments a mock-serious, procedural feel, which is why it still works as instant shorthand for drama and justice.