Start removing the plate with the coax connector for the TV that works and check the connections there. Quite often these rigs are daisy chained between televisions.
Yes, the bat wing should feed all televisions.
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Ken and Terry
2018 Sunseeker 2430S-CD, nicely modified and carried by a 2017 Ford E450 Sport
Former Georgetown 330TS owner for 10 years with more mods than I can count, pushed by our 2017 GMC Terrain
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