If the TV's worked at the dealer ship I can't as an Electronics engineer blame them for failure to find an intermittent problem.
Our set up is different then yours, first there is no led on the King antenna. There is however a standard powered TV antenna booster located inside the kitchen cabinet next to the microwave. Push the switch to turn it on or off.
Beyond that ours exhibit your symptoms but since we don't watch TV it isn't high on our todo list.
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2016 Axis 24.1 E-450 6 spd tranny
300 watts portable solar.
200 watts solar on the roof.
Wrangler JK dinghy
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