I will throw in my experience here, I live in NW Washington, north of Seattle. I just purchased a Tivo-HD and transfered my lifetime subscription with the special that ended November 8th. I called the Comcast 800# to schedule a cable card install. The person I spoke to on the phone said cable cards no longer need to be installed by Comcast. I could just run out to the office, pick them up and install them myself, or he would be happy to schedule a Comcast technician to install them for me, but the soonest they could come would be two weeks from now and there would be a charge for the installation. So I said I think can handle it myself and went out the next day to get them. The lady at the Comcast center said I would need two multi-stream cards, but was not sure if they were the blue or red cards. Interesting the red cards say M-card and the Blue cards say S-card. To me that meant Multi-stream and Single-stream but I guess she could not figure that out and it took her ten minutes to find someone that knew this. I was amazed in how cheap these things are. Here are the recent charges from my online statement. TIVO SERIES 3-CABLE CARD $ 0.71 TIVO SERIES 3-CABLE CARD $ 0.71 LOCAL TAX $ 0.11 FRANCHISE FEE $ 0.06 STATE SALES TAX $ 0.12 Total $ 1.71 When the Tivo arrived I hooked it up and made sure it worked before I installed the cards. Reading the manual I noticed it said I only need ONE multi stream or TWO single stream cards, made sense to me. So I just installed one card to the first slot. The Tivo jumped right to a screen that said "This screen was provided by your cable company" this screen had an 800# to call to activate the card. I called it and read off a couple numbers from the screen to them. Then the guy said he was activating it now, the screen changed to some "//failed//auth//" error message. So he did it again and said it should be working, try some channels. So I flipped through a few of the channels that needed to be authorized and sure enough it was working. I tested the multi-stream part by making sure I could indeed record two channels at once with one M-Card. Over all the entire process took about ten minutes and was pretty painless. I will have to say Comcast has improved their customer support as many of my prior interactions with them have not gone so well.