My Mom's Series 3 (OLED) TiVO 750GIg hard drive is failing. Just ordered a new 2TB drive from DVR_DUDE on Ebay. I know that I should do guided setup without a cable cards in. But after guided setup should I put both cards in with it unpluged and boot it up. Or should I reboot with the cards out and put one in at a time. I know that FiOS doesn't pair their cards but I need to know what order to follow. Thank you for any help. Scott R.