And as some प्रशंसकों with particularly good memories may recall, one such visit has actually been chronicled in the series before, with the Doctor taking wife River Song there offscreen prior to the events of 2011 episode A Good Man Goes to War.
This year’s Doctor Who क्रिस्मस special could be a rare double Doctor episode, with Peter Capaldi’s departing thirteenth incarnation being joined द्वारा the 1ST Doctor, played द्वारा An Adventure in अंतरिक्ष and Time तारा, स्टार David Bradley.
“Do आप feel that River Song’s story is done?”Showrunner replied: "Well, yes, that does seem like the end to me. Except, of course, it isn’t, and can’t be. There’s always the chance that River will दिखाना up again."
While the opening episode of Doctor Who’s tenth series was all about Pearl Mackie’s new companion Bill, eagle-eared प्रशंसकों will have a noticed a sweet little callback to पूर्व co-lead Jenna Coleman’s Clara Oswald towards the end of the story.