Before I saw your helpful responses I ended up taking the carton off and measuring, using a contractor's square held in place over the top of the TV. Nice to see that worked: the dimension I measured was.020" off from the dimensions on the drawings... it was just a metric to English conversion difference!
Nice to know that data is out there. Thank you so much.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw