the quickest and easiest method to provide 120v power, when 'off grid', is to pick up an 'off the shelf' power inverter, such as a W*mt, in the tire and battery section, or auto parts stores.
Some can be plugged into your existing 12v DC plug, if you have one, or can be wired directly to your battery(s) with included 'alligator clips'.
The power inverter gives you several 120v outlets, and usually several USB outlets, too.
You can easily run an extension cord to the tv, or what you're wanting to power.
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now, in order to run an Inverter thru your current 120v outlets, in a coach that was not designed that way, is not so simple. The inverter's output must enter the Main Panel, and then serve only the breakers that the outlets are on.
Most panels are not designed this way, they are factory customized for those coaches that do have 'whole house' inverters.
Also, the possibility of 'cross over/backfeed' of 120v power from more than one source is a safety concern, which is why Inverters that are 'built in' have their own 'automatic transfer relay' to stop inverting power when Shore or Generator power is present.
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The Turners...
'07 Rockwood Signature Ultralight...
two Campers and two Electric cars : )
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