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I have a confession to make.  I am totally geeking out over Doctor Who.  On a whim this past weekend, I decided to watch an episode; there are a ton of episodes sitting on OnDemand.  For those of you who are unfamiliar, Doctor Who is a sci fi BBC television show that began in 1963.  The Doctor is an alien traveler, a "Time Lord", who travels through space and time through an old, blue police call box called the TARDIS.  He is accompanied on his journeys by a human companion, who is the empathy link to the tv audience.  The basic premise behind the tv show is brilliant and really transcends generations - "Man from outer space and lovely young female companion encounter challenges or mysteries and solve them, saving the universe."

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One of the most entertaining things to watch on the show is the relationship between the Doctor and his companion, which, in the episodes I've watched, are all young women who inevitably grow attached and fall in love with him.  He saves their lives a few times; they save his life back.  But throughout, there's this overwhelming theme of the Doctor being this lonely character - he's ageless, as a time traveler - and his companions wanting to not only help him with his quests but also be there for him.  And although the Doctor is not human, it is a very human and relatable element to craving company, particularly through the vast expanses of the universe.

I'm currently on the tenth Doctor, played by David Tennant (Barty Crouch Jr. in Harry Potter and the Goblet of Fire), and have watched all of series 2 and am halfway through series 3.  I'm obsessed I tell you, simply obsessed.  It's getting to where I record the Olympics and watch Doctor Who instead.  BBC, why is your programming SO GOOD???  You're killing my productivity.