As one of its daily deals, Best Buy offers the Sharp 55" 4K LED-Backlit LCD Ultra HD Smart Television, model no. LC-50LBU591U, for $399.99 with free shipping. That's $200 off list and the lowest price we could find. It features a 3840x2160 (4K) native resolution, WiFi, Roku content streaming (Netflix, YouTube, Pandora, and more), USB, and three HDMI inputs. It also includes a 30-day Sling TV Live Streaming Service subscription. Deal ends January 13.