When TV displaying dark scenes there is shadow and green/red

[HolmBoy]

Hi - when we first switch the TV on, the picture is fine but deteriorates especially when showing night time / darker scenes. It has patches of colour which turn green or red/pink eg peoples hair, face or clothing and sections of the background.

[AndrewL]

@HolmBoy: Please can you confirm the model number of the TV, and I will look into this further for you? This can be found on the sticker on the back of the device, or in Home > Settings > Support > About This TV. 

[HolmBoy]

QE49Q7FAM

thanks

[AndrewL]

@HolmBoy: Thank you. Please can you try pressing the Home button on your remote and heading to Settings > Picture > Expert Settings > Local Dimming > High > Contrast Enhancer > High > HDR+ Mode > On. I also recommend heading to Settings > > Picture > Picture Mode, and having a play around with the preset options to see if you're able to find something that suits the programmes you're watching, and your viewing environment. 

[HolmBoy]

None of these worked. When the scene is dark there are bright greens and distorted picture