Thanks to all who replied. I set the TV 'source' to TV and set it to scan for the available broadcast channels, most of which are in Orlando area. We're 35 to 40 mi, as the crow flies, north of Orlando. Signal amplifier on coax plate in cabinet is on. The TV captured the available channels and they are displayed briefly when you select each one. But then the screen turns blue and I get the "NO SIGNAL" message. So, it seems like part of the TV is seeing the channels but it won't show what is being broadcast. All 3 TV's in our Axis do exactly same thing. Roof antenna is pointed in the general direction of Orlando (south). We've had 4 previous RV's, all of which had basically the same set up for TV's, so I'm fairly familiar with how they work and never had a problem like this. Only difference is all previous TV's were anolog and not digital types like those that came with our Axis.
__________________
|