Clive Myrie asks the questions as four more contenders take on the black chair under the spotlight and the ticking clock in an attempt to become the next Mastermind champion. The specialist subjects are the plays of Tennessee Williams, American first ladies from 1945 to the present, NBA MVP award winners since 2000, and Mithridates the Great.

In the final heat, four contenders take on the famous black chair, answering questions on their chosen specialist subjects to earn a place in the semi-finals.

Clive Myrie hosts, with contenders answering questions on Christiaan Huygens, Jonathan Creek, the life and works of Artemisia Gentileschi, and European mammals.