The think music comes from Jeopardy, the long-running American television quiz show created by Merv Griffin and first broadcast in 1964. Known as Think, the tune plays while contestants consider their Final Jeopardy response, giving them a short, fixed window to decide. Over time it moved beyond television and became online shorthand for any moment of intense thinking, appearing in quiz videos, reaction clips and memes where a decision hangs in the balance. Its familiar melody and built-in countdown keep it useful long after the original broadcast.