My Roamio has been in service for two years without any issues. All of the sudden it refuses to record anything on KABC7 in LA. The recording activity log shows the episodes NOT RECORDED No Signal. When I watch channel 7 live it is absolutely fine and has a signal level of 85. KABC 7 is in the channel list and has a check mark next to it (selected). I have rescanned the antenna twice and reset the Roamio. Nothing works it just seems to think there is no signal on channel 7 but there is. Is it possible there is some confusion about the 'virtual' channel versus the actual frequency? Any suggestions?