Barney, Lindsey and Radzi have an update on Blue Peter's Doctor Who competition, which gives viewers the chance to design a Sonic Device which will then appear in the brand new series of Doctor Who in 2014. The team will also be showing you how to make Dalek cupcakes to enjoy with your friends for BBC One's 50th anniversary special. If that's not enough, the Doctor himself, Matt Smith, answers viewers' questions in an exclusive interview from inside the Tardis.