The hunt for the nation's Mastermind continues as Clive Myrie tests four more contenders on their specialist subjects and general knowledge. Tonight's subjects are James Bond villains, the life of Lord Byron, JRR Tolkien's Middle-earth and the castles of Northumberland.

Clive Myrie hosts another heat of the classic quiz where contenders take to the black chair. Tonight's subjects include Margaret Thatcher, the saxophone and venomous snakes.