I have Windows 7 with the above mentioned TV card.
Tried running Dscaler for TV as well as the software it came with.
I get picture but no sound.
Try the Windows 7 Media Center.
Ok that sort of works but now its asking me to install the IR remote wire which I'm not using. If I switch to antenna it won't prompt me but it wants to use coaxial and I have to use component for my Bell receiver.