We had a lightweight 20" flatscreen we bought from Walmart or somewhere. We used an 'arm mount' style TV bracket that locks against itself for when we're on the road, like one of these: https://www.ebay.com/itm/Mounting-Dr...AAAOSwEYBahAjU
The key feature of whatever bracket you choose is that it must lock into the folded position
so that when you're on the road it stays folded up against the wall, because if it drifts out to an extended position while you're going down the road it will tear itself right out of the wall
from the weight of the TV out on an arm that long bouncing up and down from the road bumps.
We made ourselves a 'check out' list to go over as we prepared to go on the road, to include things like: leveling jacks up? Sewer hose stowed? TV cable stowed? Power cable stowed? TV antenna down?....you get the idea.
You might also want to measure how tall your unit is (ours was 10 feet tall) a put a note to that fact on your rear view mirror, because sooner or later you're gonna need to know that detail really quickly as some low bridge or whatever looms ahead!