Samsung LED 7450 E-Manual page 87

3D TV
Screen Menu > Picture > 3D
The dispIayed image may differ depending on the modet,
This TV is 3D-enabled. For the best 3D viewing experience, users must wear Samsung's 3D Active
Glasses.
The ideal viewing distance is three times or more the height of the screen. We also recommend sitting
with your eyes level with the screen.
Carefully read the health and safety information concerning 3D viewing before viewing the TV in 3D.
Refer to the "3D Precautions", for more information.