Gyles Brandreth launches a brand new series, Knowitalls - the quiz without questions.

Contestants have their breadth of knowledge tested to the limit as they battle it out to impress the show's experts. Two teams are given their topics and then have just one hour to prepare. Without any outside help, they have to pool everything they know then face the Knowitall experts. The categories are science, history and entertainment.

The winners go through to the quarter finals and are one step closer to the prize of 15,000 pounds and the title of Britain's Biggest Knowitalls. Show less