Did you see Robert Blake on the “Piers Morgan Show” last week? You can catch up with it on the CNN website, even if it’s now become a series of bites or takes, with bleeps here and there. It was the movie of the week, where you couldn’t take your eyes off the screen and didn’t know what to believe. What more can you ask for? First, the contestants: Piers Morgan is 47, six-feet-one and barely shy of 200 pounds, I’d guess. He has a plush, self-satisfied poker face, not too far from David Cameron.