Celebrity Mastermind: Season 11, Episode 4

11 - 4: Josh Widdicombe, Katharine Merry, Sian Reese-Williams, Nick Baker

Comedian Josh Widdicombe, athlete-turned-commentator Katharine Merry, Emmerdale actress Sian Reese-Williams and wildlife presenter Nick Baker take on the Mastermind chair answering questions on Blur, Aston Villa, the sitcom Black Books and Alfred Russel Wallace.