The TV works with the Roku App Builded into it. ROKU is a streaming device which allows you to watch movies and TV shows from the internet not cable. You can watch free TV using the free Channels on the app and setting up your antenna. Or you can pay for the Channels you are using. Some apps like Netflix and Prime Video are commercial free
but require nominal fees. Features on the Roku TV work better than on the Roku Devices. It works over Internet Wifi and no Cable is required. There are over 1,000 apps, some are free and other require in apps purchases. You can still get Antenna TV, DVD and BluRay devices, game devices and Cable TV if you want.