Generally apeaking, no. Cable systems use different channel schemes than off-air so you have to select one or the other to do a scan. I once had a TV that would do multiple scans without clearing the existing results. If I wanted to clear the results there was a button for that. But in that case you might get two stations on the same channel (there are some overlaps between air channels and cable channels) and would not be able to receive either.
Some TVs have multiple inputs, one for cable and one for antenna. If you had one of those you could rewire the trailer (or maybe the new trailers have that capability).
"You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
2001 Safari 25 RB Twin (Gone, but not forgotten)
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
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