Keep your eyes peeled for Matt Smith as Professor Brian Cox takes an audience at the Royal Institution of Great Britain's lecture hall on a journey into the universe of sci-fi series Doctor Who, which celebrates its 50th anniversary this month. Brian reveals the science behind the show and explains the physics that allows the Doctor to travel through space and time, and also looks at evidence for the existence of extraterrestrial life. There's a Never Mind the Buzzcocks Who special at 10pm too.