So i have 1k to spend on a new ultra hd TV, i could go for 60inch but i'm afraid the picture quality goes down because of the size. We are about 5ft away from our current television, it's a 48" 4K TV. We want a new one cause this one is horrible, has backlight issues like clouding/black corners. And it has bad OS, very old and has no app store on it so it's limited to a few apps like netflix, youtube and facebook and some other crap we don't use. LG 60UH615V cought my eye, it's right on my budget, and the LG 55UH770V (because of Dolby Vision support). How worse will a 4K picture look compared to a 48" 4K TV? 55 or even 60inch is quiet larger i imagine wich results in much lesser PPI.