Well, precisely because I can watch something without glasses. It's big enough that I see all the important details without them. And it's 4K because they don't make big TVs in a different resolution nowadays.
I need glasses but rarely wear them when watching TV unless there are subtitles or I am playing a game that I need to pay attention in. Our TV is just at the limits of my vision so I can work a little bit to make out details and I am usually just too lazy to put them on unless they are right there.
Go into a store and buy a 43” or larger TV and find literally any good looking model that isn’t 4K. The few 1080p ones out there have shit contrast and color