How do I get the Voice Control to work properly?

Refer the following instructions.

1. Make sure your remote is paired with TV.
2. Press the Microphone button or The Google Assistant button.
3. The LED on the remote control will light up.
4. Speak into the microphone.
5. Speech examples may be displayed depending on your model.
6. Note: The type of remote control supplied with the TV, and the availability of a remote control with a built-in microphone varies depending on your model/region/country.