Walmart offers the Vizio D-Series 55" 4K LED LCD UHD Television, model no. D55un-E1, for $398. Opt for in-store pickup to avoid the $34.97 shipping charge. That's tied with our mention from two weeks ago and the lowest price we could find by $52. It features a 3840x2160 (4K, 2160p) native resolution, full-array LED backlight, and three HDMI inputs.