guest on the Infinite Monkey Cage on Radio 4 on Christmas Day. It's a special episode devoted to the science of Doctor Who, which I know a bit about. The blurb goes like this:
"Brian Cox and Robin Ince celebrate the festive season with a look at the science of Doctor Who. Swapping the infinite cage for the TARDIS, they are joined on stage by comedian Ross Noble, Professor Fay Dowker, Oscar-winning special FX director Paul Franklin, author and Doctor Who writer Simon Guerrier and the Very Reverend Victor Stock. They discuss the real science of time travel, the tardis and why wormholes are inaccurately named (according to Ross!)."