Try finding any meaningful information on a tv manufacturer's website, like whether its hdmi 2.0a etc and AVR's are no better. You can find any decent specs like what is the line level output on the preouts. Its just plain lazy, there are plenty of people who want and understand these specs.

DOG is GOD spelled backwards.
What others think of me is none of my business.
M80 V3 MY GLOSS Cherry