So late last year I had new windows put into the house. Before this, I had a flat cable connector so I could get my antenna cable into the house and connect to my AM21. Well, with the new windows even the flat cable wasn't an option so I had to work on getting the cable into the house. Ok, that is is resolved. Now onto the issue. Looking at my HR44 I was no longer seeing the OTA channels. I re-ran the antenna setup but even after its completion it still doesn't show any of the channels. I have verified all channels are set to be displayed. One other odd thing is if I go back to the antenna setup the edit antenna channels option is greyed out. I've tried the obvious troubleshooting rebooting, disconnecting am21 usb, rebooting, reconnecting usb, etc.