1/2 HOUR GAME SHOW/COMEDY FORMAT A contestant with a secret. A star-studded celebrity panel. An exciting round of questions and comic banter. Will the panelists guess the secret or will the contestant win the grand prize? For over 15 years as CBS's most successful game show, I'VE GOT A SECRET proved extremely popular as it was entertaining to watch. Now, one of television's all-time top-rated game show concepts is available in fresh, fast-paced celebrity driven format.