I bought an Insignia 24" at Best Buys relatively cheaply.
It has a 12 volt power supply (from 120 vac) ao I believe that it will also work off 12 volts if i wanted to use it that way.
It also has a DVD player built in.
I mounted it on a heavy duty swing out mount so we could adjust it for viewing.
I mounted ours on the refrigerator/microwave closet wall since we have twin beds in our 16' Scamp
We have one of those flat "HD" antennas that works good sometimes and sometimes not.
In our full-time 5th wheel I installed the King Jack to replace the Wineguard and it works great! I may put one on the Scamp
, but so far it has not been a priority for us.
We are getting ready to retire in the next 18 months sometime and the Scamp
is for that time.