How to prevent Screen Burn in Series 6 4K UHD TV(KU6470)?

If a still image is shown on the screen for longer than the time that you selected, the TV automatically activates the Screen Burn Protection function. 

Press Home Button on Samsung Smart Control → Settings → System → Expert Settings → Auto Protection Time → Select Time setting 

Pictorial representation to prevent Screen Burn in your TV is as follows:

a). Press the Home Button on your Samsung Smart Control, to access the Home Screen.  

b). Using the Directional pad on your remote, navigate to and select Settings.

c). Select System.

d). Select Expert Settings.

e). Select Auto Protection Time.

f). Select a Time setting from the list. In this case, for example, select 4 hours.

NOTE: The default setting is 2 hours.

CLICK HERE to know how to reduce Energy Consumption in Series 6 4K UHD TV (KU6470).