Hello mylifeasmanta,
Thank you for reaching out in Apple Support Communities. We understand you'd like to use AirPlay to stream content from your iPhone to an Apple TV.
AirPlay is a great feature to share your photos. We'll be happy to help.
To help set up AirPlay, we suggest to follow the steps outlined in this helpful article: Use AirPlay to stream video or mirror your device’s screen You want to start in the section that says, "Get started" and then move on to the next section that says, "Steam video from your iPhone, iPad, or iPod touch."
In addition, please ensure that you meet the AirPlay system requirements outlined here: AirPlay system requirements
Keep in mind that while you'll see what's mirrored on the actual phone screen, you won't see the phone replicated on the Apple TV. That's part of the WWDC magic!
Best regards.