This week, Anthony Mangano takes us on a behind-the-scenes look at City of Churches, including a sneak peek at a couple of future episodes, a look back at some favorite highlights from this season including “the saint who walked in Brooklyn,” plus a couple of entertaining never-before-seen clips that were left on the cutting-room floor. There’s also a behind-the-scenes segment with a couple of bloopers. It’s the most unusual “Best of..” episode because about 50% of this program is new and unseen material.