Started loosing HD channel reception this morning. The channel would be fine, no pixelation like you would get like rain fade or signal blockage. It would just swap to the SD version of the channel. Ran a check status test and get "error" in block A. When I select "issues" , it says Issues Port: 3 Currently Scanning. It will do this for a few minutes, and then time out and go back ti live TV. Did a Check Switch and everything passed. Red button reboot and power plug reboot CW, still no joy. Any ideas? Thanks.