In pictures: The 10th Doctor appears...

1 of 8 As the new series of Doctor Who came to an end we knew Christopher Eccleston was leaving, but why did it start in the Big Brother chair?

2 of 8 The Doctor and Rose were beamed into futuristic versions of hit TV shows, like the Weakest Link starring the Anne droid.

3 of 8 All the shows were being overseen by the controller of Satellite Five, but someone else was pulling her strings...

4 of 8 The Daleks were behind the Doctor's appearance in the Big Brother house, and had been preparing for years to invade the Earth.

5 of 8 They were led by a new villain to the Doctor Who universe, the self-styled God of the Daleks.

6 of 8 The Doctor had to kiss his assistant Rose to save the world, but his choice meant he couldn't stay with her.

7 of 8 After the Doctor's sacrifice he went through his 9th regeneration, bringing the 10th Doctor to the screen.

8 of 8 The latest face of the Doctor is actor David Tennant, who seems to have lost his Scottish accent. Maybe he'll get back for the Christmas special...