Late to this party, but I have the same setup for my Main TV in 29ve. My Insignia failed during warranty ands Winnebago wanted to replace, but I did not bother, I bought a 40" Samsung Smart TV with WiFi when I tried to reinstall, I had to cut that bracket that mounts on the back of the TV so I could access all of the connections. My wife thought I was going mad cutting up a the new RV
I like the bracket as it is very stable. Ours is cut at an angle so it is perfect viewing from anywhere in the main coach.