Simply Beautiful! Introducing the all-new VIZIO P552ui-B2 4K Ultra HD LED TV. With four times the detail of 1080p Full HD and best-in-class picture quality of Full-Array LED, 64 Active LED Zones, and Clear Action 960, the P-Series is your crystal-clear window to an exhilarating world where picture is everything. Note: You must have a source of HD programming in order to take full advantage of this 55" LED Smart TV. Contact your local cable or satellite TV provider for details on how to upgrade.