Like curved monitors I don't really see the point of 4K. Always fund it funny in adverts when they show off the great colours in the particular TV. I just go yes it looks great and I'm seeing it on my actual TV so no need for that one:)
Really makes no sense advertising TV's on TV's
I can remember my parents bringing home our first COLOUR TV. They said the ads for color were VERY EFFECTIVE even on a BW set.