Series 6 begins on Saturday 23rd April on BBC One with ‘The Impossible Astronaut’.

The BBC also revealed today that a prequel to the two-part opening story will be available on the show’s official website from 4pm this Friday.

> Order the Series 6 Part 1 DVD on Amazon.

> Order the Series 6 Part 1 Blu-ray on Amazon.

The 16-second teaser is available to watch online now…