Good question. We connected to shore cable and got cable channels in the living area, but after running the scan on the TV in the bedroom, only got air channels. I had read somewhere on an earlier post on this forum that the bedroom jack is not connected to the cable jack on the outside. Just what I remember reading.
I would check the cable jacks with a continuity tester to see what feeds what. You can check each interior jack, the exterior cable and porch jacks and the antenna connection jack under the boot on the roof. There should be a jumper loop somewhere, probably in a cabinet by the antenna amplifier that may need to be temporarily disconnected to get a true reading. I have been intending to try this on our Eagle HT, but have not yet to date.
We're just down the road in Stuart.