A:Answer Multi View allows you to watch up to four things at once on your TV, including what’s on your Smartphone. Whether it's live stats for the sports you’re watching or cheat videos while you play a game, see them all simultaneously on the big screen. While multiple HDMI inputs can’t be viewed simultaneously, here’s an example of how you can use this feature: On each screen, you can play apps like TV+ or YouTube, HDMI devices, Antenna or Cable, or USB devices, as well as screen mirror, use AirPlay, cast from an app, or cast from an IoT camera.
~ Samsung Specialist