Best Buy offers the Samsung 55" 4K 2160p LED-Backlit LCD Ultra HD Smart Television, model no. UN55KU6290, for the in-cart price of $499.99 with free shipping. That's the lowest price we could find by $298, although we saw it for $5 less in March. It features a 3840x2160 native resolution (4K), Internet apps, WiFi, USB, Ethernet, and three HDMI inputs.