Flashcast: Doctor Who S6E1 and S6E2 - Flash! A discussion about the first two episodes of this season of “Doctor Who,” “The Impossible Astronaut” and “Day of the Moon.” Who is in that spacesuit? Who is the little girl? Are the Silence just lazy? We speculate wildly. Host Jason Snell with Dan Moren, Glenn Fleishman, John Siracusa and Serenity Caldwell.