OLED v QLED

[scarletlion]

Another one of these threads sorry. I'm absolutely torn and cannot decide.

My situation is:

I have a 50 inch 4k Panasonic TV. It's nice but I sit a little under 8 feet away from it, and I find I'm not getting the most out of 1080p and 4k stuff at that distance. I mainly watch movies (say 5 a week) and watch about 3 sports matches a week too. I watch an hour of news a day. It just feels too small.

I have the green light to spend around £1500 on a new TV. At a push (and I mean a real push) I could go up to £1999. And hope the wife never finds out. I have young children that will probably watch an hour or two of youtube a day. I cannot babysit this TV 24 hours a day.

I feel the jump to 55 inch is too small a gain. I'd prefer a 65 inch but that's then an extra £400 or so.

So :

-Is an OLED too risky given this situation? (burn in and damage etc)
-Should I risk it and get it from somewhere like John Lewis with extra damage protection?
-Will the Black Friday deals in November see a 65inch LG or equivalent enter my budget range?
-Should I be looking at QLED ? Is that the right gear for my situation, or will I regret not getting an OLED when I had the chance?

Thank you for any replies.