Two days ago I bought a Sony 55inch OLED from Noel Leeming (I gave away my old HT in the buy/sell of geekzone).
I've setup it up and all looked good but I noticed on static screens there are big black marks in the corner. It's visible but not so apparent in moving scenes.
Has anyone seen anything like this in the attached photo (bottom left corner). I'm going to back to NL tomorrow but thought I'd check here first.