VIDEO: David Tennant Introduces The Day Of The Doctor

In a new video clip from the BBC, a clearly over-excited David Tennant guides us through the stunning special effects of The Day Of The Doctor and gives us a sneak peek at the Doctor's latest foe.

View the video below (don't worry, no spoilers...):

The Day Of The Doctor starring Matt Smith and David Tennant with John Hurt, Jenna Coleman and Billie Piper will be broadcast worldwide in sync with the premiere on BBC One at 7.50pm GMT and on BBC America at 2.50pm ET. Over 75 countries will be taking part in the global simulcast via TV and cinemas.