mycomputersucks: Thanks for the site plug. I have no idea who you are, so really, thanks.
gorgon2k: Caught the trackback in my referer logs, so I thought I'd check out where it came from, and I can prolly answer your question.
Yes, you can do all that with a decent Tuner card and good PVR software. If you want to pump it all out to your TV, you're going to need a gfx card with some kind of TV out, and some way of feeding the audio to the TV (you can do this on the cheap by getting a speaker to RCA Y adapter cable).
If you're running Windows MCE and have a remote, then you can run the GB PVR software from the remote. Or if you're running vanilla XP, or even an older version of Windows, there are plenty of USB remote kits out there.
The BIG advantage of the GB PVR software is that it's free, and it also pretty much ignores DRM.