The 4-Series 4K TCL Roku TV delivers stunning Ultra HD picture quality with four times the resolution of Full HD for enhanced clarity and detail . as well as endless entertainment with thousands of streaming channels. High dynamic range (HDR) technology delivers bright and accurate colours for a lifelike viewing experience. In addition . your favourite HD shows . movies . and sporting events are upscaled to near Ultra HD resolution with 4K Upscaling. The simple . intuitive Roku interface allows seamless access to over 500 .000 streaming movies and TV episodes . your cable box . Blu-ray player . gaming console . and other devices without flipping through inputs or complicated menus.