I have a brand-spanking new Hauppauge WinTV-HVR-2250 with dual digital tuners. I'm looking to watch free over-the-air digital TV (I'm in NYC). I hooked it up to WMC in Vista, but I get crappy reception. WMC claims I'm getting the digital channels, but on my monitor they're full of noise, exactly like a fuzzy analog channel would be. When I run WinTV, it only scans for analog channels, and they're really fuzzy too. How do I know if I'm getting digital channels?