The Xfinity Stream app lets Xfinity customers watch live TV on computers and mobile devices. If you prefer on-demand content, Xfinity has a vast collection of free streaming apps.

Comcast launched the Xfinity Stream app on Apple TV 4K and Apple TV HD -- which can now act as a substitute for your cable TV set-top.

The Xfinity Stream app has officially launched on the Apple TV set-top boxes, allowing users to view both live channels and Comcast's library of on-demand content on tvOS.