Professor Brian Cox and comedian Robin Ince return for a new series of the witty, irreverent science/comedy show. This week the Infinite Monkeys will be asking what don't we know, do we know what we don't know, does science know what it doesn't know, and are there some things that science will never be able to know? Joining them on stage for this brain twister and to discuss whether any of us actually know anything at all, are the comedian Paul Foot, biologist Professor Steve Jones and cosmologist and science writer Marcus Chown.

Producer: Alexandra Feachem.