To stream from your iOS device directly to a TV, follow these steps:
Ensure your Smart TV is AirPlay 2-compatible by checking the official compatibility list.
Make sure both your device and your TV are connected to the same Wi-Fi network.
Open the video that you wish to stream.
Tap on the AirPlay icon within the video.
Choose your Smart TV.
To stop streaming, tap the same AirPlay icon, then tap your iPhone, iPad, or iPod touch from the list of available devices.