Analog tv replacement

Thanks everyone. The original old analog that we ordered from Lance with the camper is 12 volt. Naturally that is what I want to replace it with as you can receive standard broadcast (non-sat.) with DC batt. power. When we took our Dish receiver along we used AC from shore power or generator depending on our location. I have a factory installed swivel wall mount with a 12v power plug and antennae connection right above it on overhead.
Just want to update to a digital tv so we don't have to used the converter. Thanks again for all your input and advice.