The Tenth Doctor meets the Fifth Doctor.
David Tennant's Tenth Doctor is set to meet Peter Davison's Fifth Doctor in a special scene commissioned for BBC One's Children in Need.
The scene, entitled Time Crash, was written by award winning Doctor Who writer Steven Moffat, and will transmit as part of the Children in Need fundraising evening on Friday 16 November 2007.
"It is an honour for me to be able to make the connection between the Fifth Doctor and the Tenth Doctor," noted Peter Davison. "However, now is not the time for sound-bites. I can feel the hand of history on my shoulder, even if I can't do the buttons up!"
Look out for more coverage on the site nearer the time - and don't forget to support Children In Need and donate on the night!