Transmat:Doctor Who
The Name of the Doctor was the beginning of Doctor Who's fiftieth anniversary storyline, and the conclusion of the seventh series produced by BBC Wales. It resolved the central mystery of the series by conclusively explaining how Clara Oswald had appeared and died at several points in the Doctor's life.
The episode contained the most Doctors ever seen in a single episode — though this was mostly achieved through the integration of old footage into new background plates. Nevertheless, the appearances were incidental; former Doctors were merely seen, not heard. A notable exception was the First Doctor, whose initial departure from Gallifrey was shown for the very first time on-screen — albeit in a way that essentially validated the depiction of the event seen in the 30th anniversary comic story, Time & Time Again.
While the main focus of the story was to explain Clara's splintered existence, it also had other reveals: the apparent conclusion of the Doctor's relationship with River Song, the definitive end of the Great Intelligence story arc and the shocking reveal of a previously unseen incarnation.
That reveal covemprised the episode's cliffhanger, which was not continued until the 50th anniversary episode itself.
