Chosen Solution
My TV lost half of it’s color while it was being used. It was not hit, and it does this on all inputs. I’m going to open it, but do you have any idea what it could be?
I could only assume it would have to be either the main board, TCON board, or the panel is going out and you probably would not know which until you replaced them one at a time and if neither board resolves your issue then it is more than likely the panel.