The Kermit the Frog and Miss Piggy talk about their new film The Muppets, in which they reunite with the rest of the gang for one last show to save the Muppet Studios building from being razed by an unscrupulous developer. That's an actual term. The host also chats to Downton Abbey star Hugh Bonneville and comedian Jack Whitehall, and Arctic Monkeys perform in the studio ahead of their American tour.