Hi, I've just noticed that a shadow has appeared on my KD55A1, starts at the bottom middle of the screen moving up to the centre into a sort of point. TV is less than a year old.

At time of noticing YouTube was being used to play for music videos for the little one and only noticed it on the last few. I thought it may of been the video itself at first however on testing other videos and sky q it's still there. 

Going to give the panel refresh option a go to see if that fixes it. 

Any help would be appreciated. I've added two photos of the issue below.