If I ever get my 30FE back from CW where it's been in the shop for 13 days for minor work, I'll shoot some pix of how I mounted ours.
On our last one, I did what someone posted above - a piece of 1x4 screwed vertically into the wall stud with 3 screws, stained the 1by to match the wall, and attached TV mount to that. a 24" TV hung there perfectly in over 10,000 miles on all sorts of terrain. It was still firmly in place when we traded it in.