Simon Singh, author of Fermat's Last Theorem and Big Bang, talks about his latest book, which explores mathematical themes hidden in The Simpsons. Everyone knows that The Simpsons is the most successful show in television history, but very few people realise that its team of mathematically gifted writers have used the show to explore everything from calculus to geometry, from pi to game theory, and from infinitesimals to infinity. Simon will also discuss how writers of Futurama have similarly made it their missions to smuggle deep mathematical ideas into the series.