Summary: This is my sixth Sony XBR TV in the last 25 years. From the 1st 25in XBR tube to my newest XBR65X900A the picture just keeps improving. This new XBR is replacing a KDL-52XBR4 and difference in the picture and sound quality is simply exceptional. The 4K Ultra picture is astonishing clear whether you are watching HD cable, Netflix, and Blu-ray. Finally this XBR is superb to look at on or off.