I haven't watched every episode of Doctor Who. I've only seen a handful of adventures featuring the Classic Doctors. I've never watched the Doctor Who movie with Paul McGann in full. In fact, I didn't really know anything about the show until Matt Smith was cast the 11th Doctor. When his casting was announced I didn't understand what all of the fuss was about. Some friends of mine from the U.K. explained the premise of the show to me: an alien with two hearts travels through time and space in a blue box saving the universe from monsters and every so often (when ratings drop or the main actor feels the need to leave) the Doctor changes his appearance. Basically, this Time Lord from the planet Gallifrey "dies" and has to regenerate his body to such a degree that it completely changes. My friends also recommended that I watch a few episodes before Matt Smith's debut to get more familiar with the concept and the series as a whole. So I started with ...