He's got to have an invertor. It's a 38' 5th whl that Keystone calls their "Luxury" model. Now it's possible like in some MHs, not all receptacles work when on just battery power. I'd bet it's not turned on or a breaker flipped on it.
OK, I called Keystone. He's got a convertor that will run his TV and other items when not plugged into shore power, or his truck or with the generator running. They said there wasn't a switch to turn it on an off like I have in my MH which I found a little strange. But they said he should deffinatly be able to watch his TV off of the batteries.
Bill
