Brian Cox and Robin Ince celebrate the 100th episode of their hit science/comedy show, by inviting some very well known monkey cage alumni to join them. Brian Blessed, Eric Idle, Katy Brand, Dave Gorman and Andy Hamilton (to name a few) take to the stage to consider what has been learnt since Episode 1, back in November 2009. Joining them are science royalty, including Alice Roberts, American astrophysicist Neil De Grasse Tyson, Prof Sue Black and Prof Fay Dowker, to look at the big scientific discoveries that have happened in the time since Brian and Robin first hit the airwaves.