Awake

Watched the first episode of Awake and I have to say, it's pretty interesting.  It's about this detective who was in a car accident only he's stuck in between two realities.  When he goes to sleep in one he wakes up in another.  In one reality his son survived, the other his wife.

I have several theories about the show but the most realistic is that he's in a coma.  But that still would not explain the wealth of information coming from the two realities.  Each one is simply too realistic to be fake.