Comcast is now offering HD on demand. I was impressed. I saw Chronicles of Narnia in HD for free! Before an HD or Blu-Ray disc ever showed up. There were several other HD movies (Terminator, Men in Black, others), concerts and shows all available on demand. While the choices are not huge yet, I'm sure it will grow over the next year. I'm curious to people's thoughts. How do you think this will impact either HD on disc (HD-DVD or Blu-Ray)?