I live in the SF Bay Area(Richmond - Comcast). Turned on the TV just now to find that not only has my TivoHD been updated to the latest software, but Sci-Fi HD has been added to my line-up(ch.736). Wooo...er...WTF? I tune to 736 and the there is no video or audio at all. The channel and show information show up in the guide and banner but there's nothing there. I checked the cablecard diagnostics and it just says, "Not Tuned: Wrong Card State." Everything else is blank. I tried tuning to the channel via the other cablecard but get the same result. All my other channels are still working fine. Is this a problem with Tivo or Comcast? I doubt it is a signal issue as all my other HD channels get between 95-100% signal strength.