I've been having problems with MC20 with the EPG for an antenna setup in CO, USA. For whatever reason, it was only downloading 2 channels of guide info, and it didn't even appear to be right. I tried about 10 different providers for both the ATSC and mc2xml without any luck (yes, i tried the Terrestrial whatever - in addition to cable providers and dish network).
That being said, at least i could go through channels manually in MC20.
I upgraded to MC 21, and now it's not seeing my adapter at all. I have the Hauppauge WinTV-HVR-850. I'm going through the Television setup wizard, which i went through a dozen times in MC20 with the same device (in an attempt to get the guide working, i cleared all of the settings in MC20 and started over many many times).
Now it's telling me "If the list of devices is empty, you do not have any device that can be used for ATSC, and you should try configuring a different tuner type."
Any ideas? I installed the latest drivers for the WinTV, and i'm on windows 8.1. 20 minutes ago, the device was seen by MC20, and now it's gone in MC21. What should i do to resolve this?