Gyles Brandreth presents the grand final of 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 and prove they are Britain's biggest Knowitalls. They'll also walk away with the cash prize of 15,000 pounds. Two teams are given their topics and then have just one hour to pool their knowledge before facing the Knowitall experts. The categories are entertainment, business, and politics; plus Springwatch presenter Chris Packham will be grilling the players on natural history. Show less