I think they work like Bluetooth in a way, that is, the card gets provisioned/paired initially in setup. Cable cards are supposed to be cablecards, so it should technicallly work in the new device, but COMCAST may require their tech to come on site call their home office to reinitiate pairing on the new device.
My local techs (GCI) so rarely use cable cards that they were almost clueless on setting them up btw. I provided them the TIVO directions for configuring which helped. That was a couple years ago, I can only hope they configured a few more people since then, so I dont go through the hassle with my new premier when I get it.
Stock Series 2 60 hr
Broadband Connection using
Netgear Router, and Belkin USB Adapter-Harddrive upgrade next, when convince wife Tivo is not same as a VCR and worth the cost.