Once you start watching in the Apple TV app, you can use your remote to control playback, get more information, turn on subtitles, and more.
During playback, do either of the following on your or remote, do either of the following:
selectremote. To swap audio back to the larger picture, press onscreen to relocate the viewer to a new corner. Select again to move it to the next corner, and so on. Press onscreen.
Stop playback and close the smaller picture: Press from the pop-up menu.
Move the smaller picture to any corner of the screen: Select Move from the pop-up menu.
Note: Picture in Picture viewing may not be available in all apps.