Wanted to give my two cents here. Im in San Antonio and use TWC. When I called to make an appt to get my cable cards installed they told me it was gonna cost $52 for the truck roll. I was kinda mad about this but hey, what are you gonna do? So that night i took the TWC dvr's back and the nice person at the TWC store told me that the TWC store on 410 and Blanco will give me a cable card for installation. No need for a truck roll. So, the next morning i went there and sure enough, they gave me an M card. I took that baby home, installed it in the TivoHD and I received partial success. I could get the local HD tier, but none of the other HD channels. I must say, the TWC rep on the phone was awesome. He insisted on staying on the phone the entire time during my CC install. We were on the phone for about 45 minutes. After he tried several things and talked to several people, I still wasnt getting anything other than the local HD. Now I know about SDV in San Antonio, but there were still a few HD channels that were black. After he tried everything he knew, he made a truck roll appointment. I had read all the Tivo faq's and I tried to tell him it was billing/acct issue, but that didnt seem to help. About 2 hours after hanging up, another really nice guy from TWC called and asked me about the situation. I explained to him the problem and he said he recognized the problem. The CC wasnt authorized properly to see those other HD channels. He did his thing and bam. Im watching HD channels (well, the non-sdv ones anyway). So if you live in San Antonio, you can pick up the cards and do the install. And there shoudnt be a need for a truck roll. Love Tivo, its my first and I can't understand why it took me so many years to get it.