Well if you are going to judge 4k at least ask the store owner to hook up an HDR t (or non HDR 4k tv) Panasonic UB900 ultra hd blu ray player. While playing the revenant which is shot in 4k and compare that with an 1080p TV hooked up to a blu ray player that plays the normal blu ray of the revenant. If you still can't see the difference UHD might not be for you, but don't judge 4k just because you didn't see it at it's full potential.
Please excuse my (probally) poor grammar







