Battlestar Galactica

I was a late comer to the whole BSG craze. The series just ended, and I've only seen the opening miniseries. But, I can tell you, this show is my new obsession. All three hours of the miniseries are riveting. The plot races along, but the characters are still very well-developed and three-dimensional. Even if you don't love Sci-Fi (or SYFY, as the channel now calls itself), this show is brilliant. Watch it.