BuyDig via eBay offers the Sony 55" 4K 2160p 120Hz LED-Backlit LCD Ultra HD Smart Television, model no. XBR-55X850D, for $769 with free shipping. That's the lowest price we could find by $329, although we saw it briefly for $50 less a month ago. It features a 3840x2160 (2160p) native resolution, 120Hz refresh rate, 802.11ac wireless, Ethernet, Smart TV apps (such as Netflix, Hulu, and Pandora), USB, and four HDMI inputs.