Clive Myrie hosts another heat of the classic quiz, with contenders answering questions on British and Irish women astronomers, White House pets, Edith Cavell and La Vuelta a España.
The hunt for the nation's Mastermind continues as Clive Myrie tests four more contenders on their specialist subjects and general knowledge under the glare of the spotlight and the ticking clock.
Tonight's subjects are British and Irish women astronomers, White House pets, Edith Cavell and La Vuelta a España.
