Walmart offers the Samsung 50" 4K 2160p WiFi LED-Backlit LCD Ultra HD Smart Television, model no. UN50JU6401, for $698 with free shipping. That's $130 off list and the best price we've seen for any Samsung 50" 4K TV. It features a 3840x2160 (2160p) native resolution, 4K upscaling, WiFi, Smart TV apps, Ethernet, two USB ports, and three HDMI inputs.