Time to take your entertainment experience to a new level. The RCA 55" 4K Ultra LED High Definition TV features a brilliant 2160P 4K Ultra high definition picture. Sporting events and movies never looked as good. 4K Ultra High-Definition displays have four times the number of pixels as a Full HD display, turning your shows into the ultimate UHD viewing experience. The 55" 4K Ultra LED High Definition TV has a true 16:9 aspect ratio so you can view your movies as they were created and see a clear picture from anywhere in the room. It also has a built-in digital tuner. Connect up to four HD devices via the provided HDMI ports. HDMI ports allow you to connect multiple devices at once, so you can stream, browse and listen to all of your favorite multimedia. There are also component video and composite inputs available for connecting older devices as well.