"Blink" is the tenth episode of the third series of the British science fiction television series Doctor Who. It was first broadcast on 9 June 2007 on BBC One. The episode was directed by Hettie MacDonald and is the only episode in the 2007 series written by Steven Moffat. The episode is based on a previous short story written by Moffat for the 2006 Doctor Who Annual, entitled "'What I Did on My Christmas Holidays' By Sally Sparrow".
