I just received my premiere xl4. I moved the cc from my premiere xl to the new xl4. I called my provider (cablevision) to bind the card to the new Tivo. Tivo has been updating all day. And everything seems to be working. However I noticed one of the tuners does not seem to be authorized for cable channels. It will tune to broadcast networks (nbc, cbs, abc etc) but any other cable channel throws the message this channel is not authorized. I am using the live button to switch between the 4 tuners and the other 3 seem to have no problem tuning to any channel. But then the 1 continually behaves like the cable card is not activated. Anybody seen behavior like this before? Its not a tuning adapter issue as I don't use it (my cable has sdv but there are only a few channels on it so its not worth it).