BuyDig offers the Sony 65" XBR 4K Ultra 2160p 3D WiFi LED LCD Ultra HD Television, model no. XBR-65X850A, for $3,298. At final checkout, the price drops to $2,779. With free shipping, that's $20 below last week's mention and the least expensive Sony 65" 4K TV we've seen. (It's also the lowest total price we could find by $121.) The HDTV features a 3840x2160 resolution (four times that of 1080p TVs), 120Hz refresh rate, edge-lit LED backlight, WiFi, USB, iOS and Android controls, and four HDMI inputs; it includes four pairs of 3D glasses.