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For the series opener, "The Impossible Astronaut" / "Day of the Moon", Gold wrote variations of the Eleventh Doctor’s themes, "I Am The Doctor" and "The Mad Man With A Box".
Two episodes of the BBC science fiction TV show Doctor Who were filmed in The Valley of the Gods: "The Impossible Astronaut" and "Day of the Moon", the second of which includes an explicit on-screen reference to the filming location.