So the max 50"H dimension is referring to the product height WITH THE MOUNTING BRACKETS. Even at 46", that's the top of the mount, so you're looking at your TV being 3ft off the ground with this. Also, it does not fit ALL TVs up to 75", I would say only SOME 65" TVs AT BEST. We have 2 65" TVs, one new (2019) and one old (2010) and neither fit. The holes on the TVs are 5-7" wider than the farthest the mount is.

I will say it is really sturdy and easy to assemble (no issue for me on returning it since it was THAT easy). But the pictures and descriptions are a bit deceptive. I would say if you have low couches/small living room, or a low futon/bed, this would work great.