The BBC has released a brand new clip from the Doctor Who 50th Anniversary episode "The Day Of the Doctor." The clip is only 14 seconds long, and about half of it is promotional material, so it's a very brief clip indeed.
The teaser text for the clip notes, "The Doctor and Clara are shown something that doesn't seem possible... #SaveTheDay." In the clip, a painting is unveiled as a voice says, "Elizabeth's credentials, Doctor." A surprised Clara then stammers, "But that's not possible."
The Doctor Who Fiftieth Anniversary Special: Day of the Doctor is set to air in a global simulcast on November 23 and will be available on Blu-ray and DVD come December 10.