Cable Card Firmware for TW and Cable Vison

I have had a TiVo HD in my main house for almost 8 years along with cable vision cable boxes in the rest of the house. I am done with paying for additional outlets and boxes. I am going to be getting TiVo Roamios and Minis for my homes. I was wondering what the latest firmware is for the following cable systems and how to get those providers to get my firmware updated. I want to make my install go as smoothly as possible and I heard that the cable card firmware is a big key.



I have time warner in NYC 1 + 3 Minis



Cablevision on Long Island 1 Pro + 4 Mins



Comcast in Florida 1 + and 2 Minis



Thanks so much for your help