Customers can use AirPlay to watch your videos on their TV by playing from their Mac, iPad, or iPhone.
How to use AirPlay with your Apple iPhone or iPadOS - please view the support article on the Apple website. Make sure that your devices meet the requirements for using AirPlay.
To watch videos by using AirPlay:
Make sure your Apple TV is set-up
Make sure your Apple device is logged on to the same WiFi network as your Apple TV
Open the video on your Apple device and click on the AirPlay icon.
in the pop-up that appears, select the desired TV and the video will begin playing