I just hooked up my new box. I popped the CableCard I had in my TV into the Tivo. I was surprised that it worked! I didn't even have to call the cable company. I thought it was paired with the TV. Oh well, I'll have to pick up a 2nd CableCard tomorrow. For now, it works great! One bummer. Once you install the CableCard, it tells you to run Guided Setup again or it won't work right. When I try to run Guided Setup, it says its unavailable because the Tivo is currently connecting to the Tivo Service - Try Again Later.