I found on our RL250 that the wall paneling is thin enough to depress where there are no studs. The studs are wood, but I didn't trust the studs by themselves so I cut a piece of plywood, stained it and used it as a backplate, attaching to two studs. Did this on the LR wall and the back side for the BR wall. Both TV's are still in place even after many long trips including east to west coast move.