If you’re a Zwift user and you prefer to watch other content while indoor cycling (I do), I have a great tip for you. Right now, Apple TV supports Picture-in-picture (PiP) mode—a secondary video overlay to an active content. The feature works great—no noticeable lag, consistent high frame rate. There’s one caveat: only few apps support it—Apple TV+, Apple iTunes, and few cable apps. 

What you can do, however, is to use a secondary iOS device and Airplay the content to the Apple TV. Instant PiP while working out! It gets better, by default, Apple TV does not output the sound of the PiP. You can override this by pressing the Home button on your remote—Apple TV will switch to the PiP window and outputs the sound of the PiP content. 

Enjoy!