We also have a 201QB, we bought our 2018 one year old and the previous owners took the TV but left the mount. Unfortunately, the mount location would only allow a small 24" TV to be mounted. I had an Insigna 32" I wasn't using and decided it could be mounted if I relocated the mount, the TV only weighs 12.2 pounds and I would still be using the factory installed backer for the mount. It worked perfectly and has been there successfully for three years and over 10K miles. I hope this helps.
__________________