Electrical issue

FYI the 'breakers' on the inverter are different than ones you find in your electrical panel. They are usually button breakers. These are very small and easily missed. Look for a button about 1/8" in diameter. Push it in and see if that works....Dennis

TV are on your inverter, so likely that is the issue if other breakers are ok.

I vote for the breaker buttons on the inverter. I had the same issue with my 2007 Discovery and it took me while to figure it out.

Try it on the generator, you could have a leg down on the 50 amp at the pedestal.

FYI. Tvs will usually not be on if engine is running

With everybody else it sounds like a bad or tripped GFI outlet. Let us know what you find.

check gfi in bathroom and kitchen and maybe under table

Check the breakers on the inverter.

Check the GFI on that side.

Check for a tripped GFI and check for a tripped breaker on the inverter