Groupon offers the Samsung 40" 4K 2160p LED-Backlit LCD Smart Ultra HD Television, model no. UN40HU7000, for $599.99 with free shipping. That's $600 off list and the lowest total price we could find, although we saw it for $50 less last month. It features a native resolution of 3840x2160 - four times that of 1080p TVs, LED backlight, WiFi, USB, and four HDMI inputs.