TV mounted too high is the most common setup mistake. It causes real neck pain. Here is how to diagnose and fix it.
Looking upward for extended periods forces your cervical spine into an unnatural angle. Even a 10 degree upward tilt sustained over 90 minutes causes muscle fatigue and pain.
The correct fix: the centre of your TV should be at seated eye level, roughly 105 cm (41 inches) from the floor for standard upright sofa seating.
Neck pain after watching. Tendency to slouch down into the sofa. Upper back tension after an hour or more.
You are looking noticeably upward from your normal seated position. The bottom of the screen is above your seated eye level.
Above the fireplace: Fireplaces push TVs 60-70 cm above comfortable eye level. A tilting bracket that angles the screen downward is the best fix short of remounting.
Tilting wall bracket: Angling the screen downward 10-15 degrees dramatically reduces neck strain even when the mount position stays the same.
Full-motion arm bracket: Allows you to pull the TV away from the wall and tilt it toward your seating. More expensive but solves the problem completely.
Enter your TV size and seating type for the exact height.