Another episode from David Tennant's video diary from the first time he was the Doctor: it's getting a bit cosy on set of the Series 4 finale as Companions unite to battle the Daleks.
Billie Piper and the cast and crew of 'Turn Left' discuss the plan to bring back the Doctor's lost companion Rose - and what it means for the universe!
The cast and crew of 'The Unicorn and the Wasp' give you the who's who of Lady Eddison's party-slash-murder mystery - including some unlikely guest stars!
The deleted scenes from Doctor Who, series 4, pesented by Russel T Daves.