Question: What British science fiction television series had it's episode entitled "Smile" written by the winner of the 2012 Guardian Prize for "The Unforgotten Coat"?
Sentence (from "The Unicorn and the Wasp"): "The Unicorn and the Wasp" is the seventh episode of the fourth series of the revived British science fiction television series "Doctor Who", which was aired by BBC One on 17 May 2008 at 19:00.
Relevant evidence: No