Depending on the application, the picture settings may not be applied to some of the Internet video service apps. However, the following items can be adjusted, if they are not grayed out.
Use the following path to adjust the Brightness:
[Action Menu] > [Picture] > [Brightness]
Use the following path to adjust the Colour temperature:
[Action Menu] > [Picture] > [Advanced settings] > [Colour] > [Colour temperature]