Does anybody here know of software for PC turner card to decode the scrambled channels.
From what I've heard, the TV tuners are having a bit of trouble with this because the digital cable channels (the first sixty or so are analog) are encrypted. I don't think it's a tough encryption to break, but thanks to the DMCA, it would be illegal to do so, and even more illegal to make a product and sell it.
Still, if you have the cable box you can at least run one of its outputs to the composite input on an ATI All-in-Wonder, and change the channels with your remote. You won't have a true PVR on your computer, but it will work until the laws (hopefully) improve.