Do you know if your over the air antenna and booster works? If so that would also eliminate any issue from the switch to the TVs (including any signal splitters, behind the panel or not) and limit it strickly to the single cable run fron the outside to the switch.
Since you know it's good direct to the pedestal, I would remove the powered switch plate and look at the cable from the outside to the switch and see if the connector is good and/or connected. Then, if you have a barrel connector, try bypassing the switch and running it directly to a TV.
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2018 Palazzo 33.2
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