I just finished watching the entire Friday Night Lights series - 5 seasons, 76 episodes of 45 minutes each. I think it took about 3-4 weeks.
I have heard about the series from numerous people. Fellow bloggers, fellow friends, I got a lot of encouragement to watch it. "But I don't like football. I lived in the town that the show was based on during the 80s as a kid, and I have no desire to relive it." Still, people urged me to watch.
It helped that it was on Netflix streaming, at least Seasons 1-4. I had to get a free week trial to Hulu Plus to watch the 5th and final season.
It's a really good show - one of the best I've seen. There are so many things that this show does right - too many to list. Even though it technically is about football, it's really about what is at the heart of football: teamwork.
If you haven't watched it, it is worth a viewing.