I just bought a new Surveyor this weekend and had the same question.
The TV mount is made by LW Engineering, it is called a KeBloc. Here is a link:
http://www.lw-eng.com Unfortunately they are not sold anywhere.
I want to buy their flat mount and put it in my bedroom. That will allow me to use that TV outside instead of removing the TV mounted on that slide. I will let you know if I find out how to buy this mount.
Thanks,
Jamie