Mystery Prime Day 2017 TV Deal is $599.99 55-inch Sony XBR55X700D 4K HDR Smart TV Posted on 11/07/2017 by i4u One of the last big Amazon Prime Day 2017 TV deals is released. The 55-inch Sony XBR55X700D 4K Ultra HD Smart LED HDR TV is on sale for $599.99. This TV deal fits the announced Prime Day 2017...