Be sure to change this setting to full range in the TV Output section! It will let the Switch use the full RGB range on your TV/Monitor, making the image have better,
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Eelectron 9025 KNX switch - RGB RANGE - with interchangeable symbols — KnxSolution
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Having a hard time seeing people or your game looks too grey ?? Go to Sound and Screen settings on PS4 and then Video Output Settings and switch RGB Range to Full,
Eelectron 9025 KNX switch - RGB RANGE - with interchangeable symbols — KnxSolution