Doctor Who fans, be nervous! Or excited! It all depends on how you feel about the Doctor's current companions Amy (Karen Gillan) and Rory (Arthur Darvill). This Saturday in the episode “The Angels Take Manhattan,” the two are set to leave the Doctor (Matt Smith) at 9pm EST, 6pm PST. But before that happens, there's an hour long documentary called "Doctor Who in the U.S." Take a look at a clip from it.