I replaced my TV with a bookcase.
Although all picture processing crap should be turned off in general, on that specific model people seem to advocate leaving sharpness at it’s default (very low) value.
For the OP, this is the go to tutorial on set-up. There’s a LG C1 owners thread on avforums.com if you want further guidance;
May be true of that model. On mine it was so noticeably bad that I went diving through the menus to try and find out what the hell was wrong with it. It was adding… almost like MPEG artefacts to it.
I’ve mostly left everything else at default for now, I’ll sit down and work it all out at some point, but that particular setting was just awful. You know when you walk in and you can immediately tell that someone’s watching BBC1 rather than BB1 HD? It was that bad.
LG Nano 90 series, if that makes a difference to anyone.