From Archimedes to Stephen Hawking, penicillin to viagra, Chris Stuart returns with a celebrity panel at the Science Museum in the quiz that explores the world of discovery and inventions. With Lewis Wolpert, Adam Hart-Davis, Johnny Ball and Kevin Warwick. Compiled by Crispin Belcher.

Inspiration (1.30pm R4) returns today after an 18-month interval. Its aim is to demystify science and make it jolly and accessible. Carol Smith, the producer, insists that her eminent professorial contestants should make everything comprehensible to someone like her, who boasts of no scientific qualifications beyond CSE biology. Lewis Wolpert and Adam Hart-Davis (of Local Heroes on BBC 2) chair the teams. Their guests are Johnny Ball, father of Zoe and the man who was always asking us to Think of a Number, and the cybernetics guru Kevin Warwick - who recently had to buy an extra plane ticket for his robot cat. (SG)