Catch 21 is an American ... The show's fourth and final season debuted on August 16, 2010. Reruns currently air weekdays at 2PM Eastern on GSN, and are also seen on Bounce TV.
Catch 21, a game that combines pop-trivia with the card game 21, is now being aired on GSN, a network that broadcasts game show series. Cellufun will provide ... Catch 21 will be launched concurrently ...