To use the Apple TV app, AirPlay, and HomeKit, you will need to enable the Sony Smart TV services via the BRAVIA™ TV Privacy Policy. If you experience Apple TV access or connection issues when pairing to an Apple device using the AirPlay app, follow these steps to resolve the issue:
On the supplied TV remote, press the HELP button.
Go to Status & Diagnostics, and then select Privacy settings.
On the Privacy Policy screen, read the privacy policy, if you agree, scroll down to the very bottom of the policy, and then agree, at least with respect to Sony Smart TV services, or select the Agree to all option if you desire.
On the TV remote control, press the Input button, and then select AirPlay from the input selection to display the AirPlay menu.
https://www.sony.com/electronics/support/articles/00260396