Regs: i had to manually install the hauppauge drivers before my tuners were recognized, but i got all the options you list above. did you do an upgrade or a fresh install? are you using default w8 video drivers, or manufacturer video drivers?
Ah - good point about the manufacturer drivers, not sure why I overlooked this >< Nvidia beta drivers now installed and WMC looks beautiful all over again :-)
I'm running Win8 as a VHD, so a fresh install. Don't get me wrong, WMC is picking up my American tv tuner, but being American it doesn't pick up NZ signal... This tuner is the only option I have for receiving a TV signal which is what's frustrating me a little.
freitasm: If you use WMC and want Freeview|HD then the Silicondust HDHomeRun is the thing to have (if you want it on a laptop or other PC which can't have a card added for any reason). However I've tried installing the HDHomeRun on Windows 8 and WMC fails to detect a valid TV tuner. Waiting for updated drivers to test again.
Perhaps you need to lend it to me for testing as well, just in case...