Unfortuantely I am having problems with the tv tuner part of WMC. First off here is my setup..
AMD Phenom II x940
ATI Radeon 4890 (w/ latest drivers
Hauppage HVR-1800 (w/ latest drivers)
Hauppage 950-Q (w/ latest drivers but got "this may not have installed correctly)
When I try to use WMC to view TV I only get sound. This shouldn't be a problem with the actual signal because everything worked fine out of the box using Vista. Also when I play any DVDs I only have sound. I can open DVDs/other video files using VLC but nothing works in WMC. I can't even view the preview movies/tv clips that come preloaded on Windows 7. I even went back and did a clean install to make sure an upgrade wasn't the problem! What's different about the TV tuner software portion of WMC in Windows 7 and in Vista?