Sears offers the Seiki 55" 4K 2160p LED LCD HD Television, model no. SE55UY04, for $759.99. Choose in-store pickup to dodge the $69.99 shipping fee. That's $40 under our mention from six days ago and the lowest price we've seen for any 55" 4K TV. It features a 3840x2160 native resolution, 120Hz refresh rate, LED backlight, and three HDMI ports.