Called Cox Las Vegas after purchasing the S3. They informed me I could pickup the CableCARDs at the Rancho office. Drive down there on my lunch hour and they say they must be installed and they didn't even have the CableCARDs at that location. Fortunately, they scheduled my install for the very next day between 3-5 Around 4pm the installer shows up with 2 CableCARDs in his shirt pocket. He asks me if they are going into a Tivo I say yes, and he said he thought so. I asked if he'd ever installed the cards into a Tivo before and he said he had, but he huffled and puffed a littled about how long they took. The install went perfectly and took 20 mins. He inserted the first card, called in and read off the HOST ID, and did the same for the 2nd. All channels worked instantly. Very pleased with everything. Now I just need an OTA antenna and transfer my liftime from my SVR2000 and I'll be good to go.