Costco offers its members the Vizio 80" 4K 2160p LED-Backlit LCD Ultra HD Smart Television for $2,999.99 with free shipping. (Non-members pay an extra $149.95, so it's better to sign up for a 1-year membership for $60.) That's the lowest price we could find by $99. It features a 3840x2160 native resolution, V8 octa-core processor, LED backlight, 802.11ac wireless, Smart TV with built-in Chromecast (with access to Netflix, Hulu Plus, Pandora, and more), USB, and four HDMI inputs.