Clare Balding puts six clever contestants through a series of nail-biting challenges, including a number puzzle featuring acrobats on a giant trampoline and Stop the Clock. Show more
Discover 11,128,835 listings and 278,066 playable programmes from the BBC
Clare Balding puts six clever contestants through a series of nail-biting challenges, including a number puzzle featuring acrobats on a giant trampoline and Stop the Clock. Show more