To turn on AirPlay on your TCL Roku TV, follow these steps:

1. Go to Settings:

   • On your Roku TV remote, navigate to Settings.

2. Navigate to System:

   • Scroll down and select System.

3. Find Apple AirPlay and HomeKit:

   • Locate and select Apple AirPlay and HomeKit.

4. Toggle AirPlay On:

   • Toggle the AirPlay switch to the On position.

Once AirPlay is enabled, you can start mirroring your Apple device’s screen to your Roku TV.