After watching dozens of comparison videos I have come to the conclusion that I cannot tell the difference between 30 frames per second and 60 frames per second, they look exactly the same to me.
lol I've seen 4K TVs GoldLeader, and there is a HUGE difference between the image quality of them and the 1080p TV I currently use. I just don't seem to be able to tell the difference between 30 FPS and 60 FPS, the latter of which my TV is perfectly capable of displaying.
The thing is with 4k TVs, is that they use special settings and content and output sources to make it look better. Frankly, a 55 4k tv looks like 1080p with slightly better DPI, but almost un-noticeable from 5 feet away.