How realistic is your favorite paranormal TV drama? Fans didn’t seem to waste much time wondering how realistic the smoke monster of “Lost” was — or quibbling that parallel universes never really collide quite the way they did on “Fringe.” But “Proof,” a new summer series on TNT, practically invites that kind of analysis. So how realistic does “Proof” seem to real-life near-death researchers? Take the scenario presented in the season premiere: A child dies and has an out-of-body experience while clinically dead. Somehow, aft...
