Though I'm not sure how many have been based on a series of books, other sci-fi shows have been based on books. Under the Dome is a recent one, though it doesn't follow the book closely at all.
Having not read these, all I saw was the trailer: the premise intrigued me, but the casting got my attention. I'll probably watch anything Jonathan Banks is in, and Chad L. Coleman won me over with The Walking Dead. (I haven't seen The Wire, but I will.) I may be a little less discriminating in my sci-fi tastes than Geoff, though, as I though SG:U was pretty good overall. I've been watching Defiance since the beginning, and Killjoys and Dominion are also on my DVR list.
I'll give it a shot, though.