Person of Interest is boring the crap out of me. I have no ideas why it has received so many rave reviews from critics and audiences alike. I'm on episode 6 of season 1 right now and it's already feeling like a drag. Suits me right for trying another J J Abrams borefest after Lost and Fringe. Will give it some more time and watch the rest of season 1 since I've nothing else to do.
It's a show which you can't watch continuously in one viewing. Just watch an episode or two and keep it paced days apart. It's good for casual viewing. One more example of such show is The Mentalist.