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Definition: true 120 Hz

TV sets and computer monitors that can display 120 individual frames per second to accommodate 3D games and movies. True 120 Hz is not the same as the many HDTV sets advertised as 120 Hz. The latter accepts only 60 Hz content and internally bumps it up to 120 Hz, smoothing the transitions in between. It does not accept 3D content that is natively 120 frames per second. See 120 Hz.