Today only, Woot discounts a selection of refurbished Vizio 4K 2160p LED-Backlit LCD Smart Ultra HD Televisions, as listed below. Shipping adds $5. They feature a 3840x2160 native resolution, 120Hz refresh rate, LED backlight, 802.11ac wireless, Smart TV (with access to Netflix, Hulu Plus, Pandora, and more), USB, and five HDMI inputs. The deals:

• Refurb Vizio 50" 4K Ultra HD Full-Array LED Smart UHD TV for $659.99 (pictured, low by $137)
• refurb Vizio 55" 4K Ultra HD Full-Array LED Smart UHD TV for $849.99 (low by $393)
• refurb Vizio 60" 4K Ultra HD Full-Array LED Smart UHD TV for $1,199.99 (low by $293)
• refurb Vizio 70" 4K Ultra HD Full-Array LED Smart UHD TV for $1,599.99 (low by $694)