You said: I replaced the house batteries (12 volt side of life)
And not two outlets (120 volt side) are dead.
UNLESS you have an inverter that powers the TV when not connected to shore or generator power the only connections between the 12 and 120 volt systems (there are at least two on a motor home) are:
1: the converter (the magic box that converts 120 volt to battery power and charges the batteries when on shore/generator power)
and optionally 2: An interlock on the TV to shut it off when driving (Normally only a single outlet.. YOu said TWO)
Odds are you snagged a wire that runs through the battery compartment unless you have an inverter.
IF you have an inverter it should STILL work on shore power.. But there are some options I do not know that well without eyes on.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times