Walmart offers the Sceptre 49" 4K 2160p LED-Backlit LCD Ultra HD Television, model no. U500CV-U, for $298.50 with free shipping. (Jet.com charges the same.) That's tied with our mention from a month ago as the best price we've seen. (It's also a low by $51.) It features a 3840x2160 native resolution, LED backlight, USB, and three HDMI inputs.
Walmart offers the RCA 55" 1080p LED-Backlit LCD HD Television, model no. LED55E45RH, for $319.99 with free shipping. That's the lowest total price we could find by $49. It features a 1920x1080 (1080p) native resolution, LED backlight, USB, and three HDMI inputs.