I would ask cable co which cards can be used with their system.Hi all, so I got a new Tivo Premiere off Amazon but now I need a cable card. I called the my cable company and they're not gonna have any available for another month or longer. (live in Bermuda, everything takes forever ) I was looking on ebay but not sure what model I need. All I know is that the serial number of the card has to start with PKJ. Can anyone maybe direct to a site or somewhere where I can find one?