In the UK series, he was in a coma, came out of it, realized he wanted to be in 1973 and jumped off a building (dying) and going back to 1973 for good.
I had a little idea on the real ending at about 10:45 when all the space references really came up. I liked it.
Gretchen Mol- is she blond or brunette. I like her blond, of course I'm partial to blonds.
Imperioli's dream should have been that he was a mobster. That would have been funny.