Soon to be former C7 owner here:
Just wanted to report that my C7 had given my many hours of entertainment from August 2017 until the week before Xmas this year, when I abruptly lost all picture to the set while doing a PS4 update [at first I thought it was just the PS4 rebooting]. Red light on set, clicked when powered on/off, just no display on any input, no LG logos, nada.
Technician determined it to be a bad panel and okayed me for a full replacement set as apparently that is the path of least resistance in these matters. Since I went with a two-year plan, in what I expect is good news, a C7 replacement was not available, and I am getting a new C8 later this week
I wanted to say the C7 served me quite well over this time. I had some initials concerns in the early months over burn-in since I played basically the same video game [uncharted 4 - lots of yellow HUD and text] for several hours daily, but I happy to report that during these past 16 months I never had any issues. Broadcast viewing wasn't a concern, set was used primarily for gaming and for serving up local content through Kodi, so what little static content had timely screen savers kicking in. Kept OLED at 60 from day 1, automatic, the whole schlemiel.
Fantastic set other than this issue. Will be sorry to see it go, though I am glad it decided to give up the ghost now and not 10 months from now. I'd dropped off the threads the past 6 months and just simply enjoyed the picture, but diving back in now to see what surprises await me with a C8. Good luck and happy viewing to all other C7 owners here!