eyeFX:

What types of televisions are required?
CRT or "Tube" type televisions (50Hz) are required for use with the 3D Video Viewing Systems. These types of televisions refresh their image in a very consistent manner, which makes it very easy for the 3D system to synchronize to the signal.

Will the eyeFX work with my HDTV, Plasma, LCD, or projection television system?
HDTV, Plasma, LCD, and most projection television systems refresh their image in a random manner. This makes it impossible for the eyeFX to synchronize to their signal, making them incompatible with the system. The exception to this is 3 “gun” CRT based projection systems where all 3 guns have a synchronized refresh.

My screen flickers
Some people can see flicker when watching a 3D program on a television. To
minimize flicker, turn down or turn off the lights in the room while you are
watching 3D. The darker the room, the less flicker you will notice.