Ok, I don't watch Oprah. Maybe have never seen a single episode. Just random clips. But I have never actually seen a black guest on her show? Besides maybe Michelle Obama  but I haven't personally seen that clip/episode. How can she have "90% ALL BLACK cask" if the only guests that I can think of are not black: Tom Cruise, Ellen DeGeneres, Phillip McGraw, Brene Brown, et cetera.