I have a 77" and sit around that distance. It might be the TV. Mine looks amazing. No pixelation unless I watch something 720p or less.Screen size is dictated by how far you sit from your TV. I only have a 50" but my couch is only about 10 feet from the screen.
Too big you see pixelation and you have to constantly turn your head
There used to be a screen size calculator on avsforums.com



,,,,,,, is that shyt