The Hisense Roku TV R6 Series packs incredible details into a 4K Ultra High Definition picture. The R6 series also features High Dynamic Range (HDR) that boosts color and contrast . and Motion Rate 120 technology which makes it easier to follow fast action scenes. Plus . with Roku TV operating system (OS) . it's easier to watch what you love with access to thousands of streaming channels . apps . and live TV. Giving everyone in your household something to enjoy.