Update on my burn in, they've confirmed they can't source a 3D screen and offered to fix it and give £100 for the convenience. I asked what else they could do given I had the Currys extra cover thingy, they've offered a new set but their initial offer was some LG 65" LED, I didn't get the model number but said that I'd expect any replacement to be an oled. Unfortunately I then had to end the call as I was about to jump on a train, I asked them to look in to what they could offer and that I'd be back in touch tomorrow. I'll see what they say then.