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.

Clive Myrie presents another semi-final of the classic quiz where contenders return to the black chair under the glare of the spotlight and the ticking clock to win a place in the grand final. The specialist subjects are the Norman Conquest, Borussia Dortmund, popes of the Renaissance and the film musicals of Alan Menken.