- 36 -Auto brightness (ECO)Contrast Automatic Tracking System (C.A.T.S.) adjusts the screen brightnessand contrast according to the room’s ambient light conditions. This ECOfeature automatically dims the brightness of the screen when the roomlighting is lowered.C.A.T.S. features a built-in delay when the lighting conditions change. Theadjustment happens gradually.If you prefer a consistent brightness, disable C.A.T.S. by:● Menu > Picture > scroll down to C.A.T.S. and turn it off.Or● Menu > Picture > Picture mode then select viewing mode such asCustom.