I watched episode three last night and realized there was something quite disconcerting about the show. Don't get me wrong, I think it's up there with the very best of science programming that I've ever seen - I'm totally engaged. But there are commercial breaks. This show is *so* PBS-like that it only takes a minute or two to get into a no-commercials state of mind. Every time there's a scene that fades to black, I don't even think of reaching for the remote control to turn off the sound of the commercial!