From everything I read on the internet it says to install a flat screen TV eye level when in the most comfortable posture. That means the vertical middle of the screen should be eye level when you’re sitting comfortably when in front of a couch. They say that if you install it higher than that you will strain your neck. I did exactly that and now I’m having an argument with my spouse who says it’s too low. What height is your flat screen TV and why?