For in-store pickup only, Walmart offers the Vizio 50" 4K 120Hz LED LCD Smart Ultra HD Television, model no. P502ui-B1E, for $698. That's tied with last week's mention of a shipped unit and the lowest price we could find by $52. It features a 3840x2160 resolution, 120Hz refresh rate, 2-sided remote with QWERTY keyboard, USB, and five HDMI inputs.