I try to buy whichever is considered the best at the time and consider a TV to be a 2000Euro upwards purchase. But every TV needs the settings tweaked and a lot of its processing turned off. The quickest way to get there is to start with the tweaks others have done from video forums. Get to that to a reference point.

Then buy a good source like an Apple TV for streaming, a BluRay HD if you like disks or a OSMC Vero to run kodi. They should require very little changes or setup.

I think the audio is more challenging.