Re: @Little Mouse
Be careful, I took the dive and bought a Panasonic 48" 4k for my office. Over hdmi on normal graphics cards you can only get 30hz refresh at 4k unless you have an hdmi 2 compatible graphics card.
It worked fine at 1080p but defeats the point.
This make everything jerky as hell even mouse movement, most TVs don't have display port that is needed.
My only option was to stump up for a gtx 980 currently the only card with hdmi 2 out at 60hz
Monitors and TVs are two different beasts in this respect with regard to inputs for PC.