Dug a bit deeper. I definitely dont have power on stats in settings. Seems to be a thing that a few of the older screens. Mine is an Oct 2016 screen. Wonder if this is normal for this model.
LG Team leader called me back today for my escalated level 2 enquiry!! As expected, LG still not interested, unless I want to pay to fix of course. He did think I have more than one issue with my screen. He thinks the panel needs changed and the motherboard might be faulty.
Seemingly these things happen to electrical items. Its just bad luck, he tells me. Its almost if they are trying to wind you up. "Really, you cant see any issue with a £2k TV developing an issue after 2 years. Its clearly not fit for purpose." . Basically told me to take it up with retailer. Fair point.
I will go back to currys and take up the issue with them. So reading several other threads about Currys warranty dept, normal procedure here is currys take tv away for inspection for a few months, tell you the issue its not covered by the warranty, lose the TV, find it, then send it back damaged. So looking forward to that sh'tshow. Happy days.