I've just purchased an Autotrail Arapaho with the big U lounge. There's no TV in the lounge area and the existing bracket can't be locked, I can see some small marks where the old TV has bashed the bulhead a few times. Can anyone recommend a good bracket and TV combination/size? We will be off grid a fair bit so guess I'm looking at 12v as best option, and how does this plug in? Thanks in advancefor any advice.., BarneyRubble