Amazon offers the TCL 50" 120Hz 4K 2160p LED-Backlit LCD Ultra HD Television, model no. LE50UHDE5691, for $449.99 with free shipping. That's $105 under our June mention and the lowest total price we've seen. (It's a current low of $180.) It features a 3840x2160 resolution — four times that of 1080p TVs. It also has a 120Hz refresh rate, edge-lit LED backlight, and four HDMI inputs.