For Dr. Phil, The Oprah Show isn't just a television show, it's an institution. "Now you're going to turn the lights off and walk out the door...and we know you're walking into a much brighter light and even a bigger stage," he tells Oprah. "People have talked about how much you've changed lives, and you know how much you've changed mine. You're a lifelong and dear friend. I love you, girl."