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"Steven Moffat talks to Digital Spy about the Doctor Who christmas special, The Doctor's new assistant and teases some details about next year's series."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/doctor-who/news/a458074/doctor-who-50th-anniversary-special-to-be-filmed-in-3d/>