I've got an ATI TV Wonder myself, and I can say, these cards add a good bit of functionality to your pc. I can enjoy the late night shows without bothering the others in the house. The native 1280x1024 resolution is a really nice addition to the card.
As far as the radio reception, computers put out a lot of electromagnetic interference. That may be a reason it doesn't pick up well. All the components within modern pc's can cause a good bit of static even on strong FM signals. I expect the reception would be better with an HTPC due to less internal wiring.
Intel C2Quad Q9400 @3.6Ghz | Asus PM5Q Deluxe
| OCZ Reaper HPC PC2-8500 8GB
| XFX Black Edition 260/216| knobs are great for twisting, turning, squeezing and pulling... especially your own..... that's how doors open | Chaos Havok:
grrrr im lagging me | <@Deathspawner>
I wish I was in Windows :-/