>>10365blur is a good thing, TVs are meant to be very blurry so they can display low res content anti aliased without ugly (bi)linear pixel cancer like on flatscreens
HD CRT monitors are made to look sharp on 1600x1200 and around that, but have very similar colours fade into a gradient, which is anti aliasing but natural.
high contrast shit like text will still look sharp, but you dont need anti aliasing or sub pixel scaling for that either because crts are amazing
in video games its even better, run your crt at a high res and you wont need any anti aliasing
480p will still look better than on any LCD, but not as good as on a low-res CRT TV
if you set your crt to 4k of course itll look a bit blurry, but nobody needs more than normal HD realistically, the only reason why flatscreen toddlers want 4K is because anything below that looks like edgy blocky shit on flatscreens even with anti aliasing