Doctor Who Season 6 Episode 1 can be watched on Saturday on April 23, 2011 at 9:00pm EDT on BBC America TV channel. Title of the brand new episode is: The Impossible Astronaut. Synopsis of the episode is: The Time Lord and his companions return for more sci-fi adventures. Three envelopes coloured the Tardis's distinctive shade of blue summon the Doctor, Amy and Rory to the middle of the Utah desert, where they are reunited with the enigmatic River Song. With the mysterious missives still unexplained, the time-traveller agrees to investigate further, and his quest takes him to 1969 - and an encounter with US president Richard Nixon. First of a two-part story, starring Matt Smith, Alex Kingston, Karen Gillan and Arthur Darvill
