What height to mount TV?

Don Landis said:

If they are passive 3D you must mount them so your eye level is same as the center of the screen. If your tv is active shutter glasses that won't matter except if the height requires you to look up for long movies, plan to suffer headaches and neck strain. Not due to 3D but simply looking up for long periods puts stress on your vertebra and neck muscles. Looking down is equally painful for long periods. One way around the vertical clearance for passive 3D is to mount the TV so that it angles down and the line from your eyes to the center of the screen is as close to 90 degrees as possible. If not, the 3D won't converge and aside from getting neck pain, you will suffer eye pain as well.

If you must mount your tv high up on the wall, then sit far away as a small compromise. I have a friend who mounted his set above the fireplace because he liked the idea of a tv over the fireplace. The idea he could have a fire burning away while watching a football game. it's not 3D. So a year later I asked him how that worked out. He said you were right, we took it down and moved it to the den at eye level. The neck pain was awful.

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