I replaced the 25" boat anchor in my Itasca Horizon with a 32" LED TV (widest that would fit in between the cabinets on each side) and have had no problems. I utilized the metal shelf which the former set occupied to bear the weight of the new TV which was less than 20 pounds and fabricated a mount that would attach to the standard wall mounting provisions on the back of the set to hold it in the proper position. I've got pictures and a description of how to do it...send PM if you are interested.
The finished installation is pictured below:
