WTF, that is a TV tuner. We don't need a TV tuner, we just need a VCR to PC adapter. Where do I get one? I don't even know where to start.
The WinTV PVR has analog input for recording from analog sources. It does happen to have both analog and digital tuners but I do not use them. Their analog capture is the best that I have ever seen.
Backed up the system lately?