By luck yesterday, I've try a large 4K TV curved from LG. I was sit near the screen with this setup.
I can say the quality of the image was good. Better than 1080p.
Look like some TV are not as good as other. That's why I said in the past that 4k TVs was a joke.
If would have a lot of cash, I'd for sure get one of these TV and use the same setup as the store I've been yesterday.
Can't wait to see gaming in 4K now!
