

I was able to do the same with Hulu + Live TV.

With YouTube TV, for instance, I was able to have one live channel playing in a small window via AirPlay, and another channel playing in a larger window via the native Apple TV app. This even works with two instances of the same app. Send a video to your TV via AirPlay, and you’ll see an option to shrink it down. You can then open any other app on your Apple TV and start playing video in a larger window. (This looks like a square with a little triangle underneath, and should appear once a video is playing on your iPhone or iPad.) Once the video starts playing on the big screen, you can shrink the video to a picture-in-picture window by tapping the remote, swiping up, and hitting the picture-in-picture icon. For any iOS app that supports AirPlay, send the video to your television by hitting the AirPlay icon.
