doctor who season 6

Also On Saturday: 'Doctor Who' in AmericaThe sixth season of "Doctor Who" (BBC America, 9 p.m.) takes place in the strangest place: late 1960s America. In an episode written by Steven Moffat, the Doctor, played by Matt Smith, along with Amy and Rory turn up in the Utah desert and travel to the White House to get orders from Nixon. The two hour episode was actually shot in the U.S. as well. If