We bought the Samsung JU670D curved TV Saturday. Took it home hooked it up that night, and we noticed the picture was fuzzy, and blurred with motion. Tested it on 4k videos on youtube and the same thing happens. We also watched a movie on the PS4, and same problem. Different HDMI ports, HDMI cables, same problem. Now I do have Dish HD, and the picture looks good but not 4k good as the Vizio P50 was I had before it. The backlight died in it and Vizio would not repair, or replace, just refund, or I would still have it. Talked to Samsung tech dept. and they kept trying to point the finger at the Dish HD box and the PS4. The JU670D picture looks grainy, and not worth the money I paid for it, so back to Costco Wed. morning. I know there is problem with it when the wife spoke up first, and isn't happy with the picture. Just my two cents and my wife's too.