To inspect HTTPS traffic from an Apple TV you need two things on the device: an HTTP proxy pointing at your Mac and the Proxyman root certificate in the trusted store. tvOS exposes neither in Settings — both are applied with a configuration profile. ProxyBeam, a free Mac app, builds that profile from your Proxyman certificate: install it once on the Apple TV, enable SSL Proxying in Proxyman, and requests show up decrypted. One prerequisite: the Apple TV must be supervised — a one-time setup with Apple Configurator on a Mac, which erases the device first.
In Proxyman on your Mac, choose Certificate → Export → Root Certificate as .cer… and save it in the .cer format.
Download ProxyBeam (free, macOS 15+), open it and drag the .cer file into the window. The app starts a local server and copies a link like http://192.168.x.x:PORT/proxy.mobileconfig to your clipboard.
Open Settings → General → Privacy & Security, highlight Share Apple TV Analytics, press Play/Pause on the remote, choose Add Profile and enter the link. The Apple TV must be supervised — a one-time setup with Apple Configurator. Details and tips: how to install a configuration profile on Apple TV.
Go to Settings → General → About → Certificate Trust and enable trust for Proxyman CA.
By default Proxyman shows traffic encrypted. Right-click a domain in the request list and choose Enable SSL Proxying — repeat for each host you want to decrypt. Keep Proxyman running on its default port 9090, on the same Wi-Fi as the Apple TV.