Given how minor the differences are in picture quality, I'd say size matters. 65" to 77" is pretty significant...Really not sure if I should return this TV for a 77 LG I’m having this internal debate with myself and can’t make my mind up. It’s not in a massive room but I’m just thinking for close to the same price I can get a much bigger screen of course not to the same quality though. I was just wondering if I was the only one with this thought here if you own the TV or not
Can't go wrong whichever choice you make though of course.