Hi there - I currently have a Samsung UE48H6670 and am looking to upgrade in size to a new TV. Prime usage will be PS4 / Netflix / Plex / Amazon Prime. I have my eye on a Samsung 55" NU7100 as for £500 it looks alright. But... am a bit worried the upscaling will look bad as I will probably run 1080p content through it (my Netflix sub isn't the 4k one, and my plex library is all 1080p). My primary reasons for upgrading are - Better screen size - Better input lag - Optical passthrough (I have a sonos playbar) I have no issues with my current set's picture quality so if it's going to be as good I'm keen.