Best Buy offers the TCL 55" 4K 2160p WiFi LED-Backlit LCD Ultra HD Roku Smart Television, model no. 55S405, for $399.99 with free shipping. (Amazon charges the same.) That's tied with last month's mention and the lowest price we could find by $100. It features a 3840x2160 (2160p) native resolution, content streaming via Roku TV (including Netflix, Youtube, and Hulu Plus), 802.11ac wireless, USB, and three HDMI inputs.