When it comes to 4K TV, bigger is always better. More specifically, big TVs are always better if they’re 4K. Even though very little native 4K content is currently available, 4K TVs can up-convert standard HD content to near-4K quality. You see, once you get beyond 60 inches or so in size, full-HD TVs don’t look all that sharp, especially when viewed from a short distance. But with four times the resolution of 2K TVs, 4K TVs currently display the sharpest image possible from a 2K signal.