Try and find a Vizio Razor 19" TV. CostCo used to carry them, but I'm not sure now. They are really 120V TVs with a 12V transformer, so just ditch the transformer and direct connect the TV. That's what I did back when I had my camper (2 years ago). Not really answering the "where" question, unless CostCo actually still carries them.
Good luck, Eric
I think a 120v TV with an inverter might work better.......
Why do want to stay away from a inverter ? I'm thinking about getting one. Just curious, if you don't mind.