It does seem low and u make a good point about if people sitting on the couch can block the view of the tv, my living room is a open space, kitchen table to island stools are in visual sight of the tv.
idk if u ever researched about mounting tvs but it basically says that the view of you sitting should be at the center of the tv screen.
Figuring out how high to mount your TV on the wall is about placement, viewing parameters, and personal comfort. Learn how high to mount your TV.
www.thespruce.com
How to Mark Optimal Height of a TV on a Wall
Once you know the height that you'd like to mount the TV on the wall, you'll need to mark this on the wall.
Use the standard 42-inch center height recommendation and measure upward from the floor to the bottom edge of the TV screen.
Screen Class (Diagonal) | Screen Height | Distance: Floor to Bottom of Screen |
43-inch | 22 inches | 31 inches |
50-inch | 25-1/2 inches | 29 inches |
60-inch | 29-1/2 inches | 27 inches |
75-inch | 37 inches | 22 inches |
85-inch | 42 inches | 20 inches |