I've been watching his "Into the Universe" series, and honestly I have been a bit disappointed. I was hoping for more science -- details about subatomic particles, a discussion of the various interpretations of quantum mechanics, an introduction to M-theory (that doesn't involve violins and floating colors). Instead, one whole episode was devoted to ragging on religion -- a bunch of speculation that doesn't teach any of the interesting science to the show's viewers.
How about an introduction to Hawking radiation, the holographic principle, superpartners? At least an overview of the standard model? Nope. Just reasons "God isn't necessary". I'm not sure why he takes this route for the show. Maybe it gets more viewers and more controversy. It's sadly reminiscient of the history channel. It used to be full of a lot of interesting, objective content about -- believe it or not -- history, but now it's just full of alien speculation and religious prophecies.