As one of its daily deals, Best Buy offers the Westinghouse 55" 4K LED-Backlit LCD Ultra HD Smart Television, model no. WE55UC4200, for $429.99 with free shipping. That's $20 under last month's mention and the least expensive 55" 4K Smart TV we've seen. (It's a current low for this model by $270.) It features a 3840x2160 (2160p) native resolution, WiFi, streaming apps (including Netflix, Vudu, and Pandora), USB 3.0, and three HDMI inputs. Deal ends today.