I misunderstood and thought you were just getting in to the book series. If you haven't read them yet there are a couple of novellas you can get as e-books that enrich the story. Some of the tv show drew from the novella called "The Butcher of Anderson Station". There is another one about the inventor of the Epstein drive. Its good stuff.

I haven't been able to watch the second half of the first season yet, since I don't have cable.

Actually I lied, I do have cable, but its basic cable that never gets used. Ever. TWC gave it to me in order to lower my internet bill last time they were passing out rate hikes. Its a backwards world were living in.