Titled ‘The Time Of The Doctor’, the episode airs at 7.30pm on Wednesday 25 December on BBC One and sees the Time Lord and Clara learn what an enigmatic signal means for his own fate and that of the universe.

> Find out everything we know so far about the Christmas special in our news summary.

Watch the trailer…

> Buy the 50th anniversary special on DVD on Amazon.

> Buy the 50th anniversary special on Blu-ray on Amazon.

What’s your favourite moment in the trailer? Let us know below…