[youtube http://www.youtube.com/watch?v=ElGU5tOkrik] Person of Interest: Point of Origin (04×08) Synopsis: While Reese is stuck on desk duty, Root, Finch, and Shaw are tasked with protecting a political analyst who stumbles onto one of Samaritan’s plans. We also get a look back in time to the development of the Machine. Rating: ★★★★☆ This week …