Amazon offers the Samsung 55" 4K 2160p 120Hz LED-Backlit LCD Smart Ultra HD Television, model no. UN55JU6500, for $719.99 with free shipping. That's $80 under our January mention and the best price we've seen for a new unit. (It's the lowest price now by $178.) It features a native resolution of 3840x2160 — four times that of 1080p TVs. It also has a 120Hz refresh rate, quad-core processor, WiFi, Internet Apps (like Netflix, Hulu Plus, Pandora, and Amazon Video), USB, and four HDMI inputs.