"A Christmas Carol" is an episode of the British science fiction television series Doctor Who. It is the sixth Doctor Who Christmas episode to be produced since the program's revival in 2005, and was broadcast on December 25, 2010 on both BBC One and BBC America, making it the first episode to premiere on the same day in both the United Kingdom and the United States. It is also the first Doctor Who Christmas episode not to feature any scenes taking place in London. Instead, it takes place over several Christmas Eves on a planet inhabited by humans, unnamed in the episode, but referred to as Ember by other media.