Apple TV remote

Hello Bevoillini,

It sounds like you want to turn on and off your TV with the Apple TV Siri Remote. In order to accomplish this, follow these related steps: Control your TV and volume with the Siri Remote

Control your TV and volume with the Siri Remote

You can configure the Siri Remote to turn your TV on or off, change the input to your Apple TV, and even control the volume.

Use the Siri Remote to turn your TV on or off

1. Open Settings  on Apple TV.

2. Go to Remotes and Devices and turn on Turn On Your TV with Your Remote.

This should now allow you to turn on and off your TV with the Siri Remote.

Hoping this helps out.

Take care.

Hey there Bevoillini,

You'll want to ensure that your Apple TV 4K is fully up-to-date, as that may resolve any unexpected issues and ensure that the latest tvOS is running on it.

Update your Apple TV manually

1. Go to Settings > System > Software Updates and select Update Software.

2. If there's an update, select Download and Install. 

3. Wait for your Apple TV to download the update. Keep your Apple TV connected and plugged in to power until the update is complete.

After the update downloads, your Apple TV will restart, prepare the update, then install it. When the update is complete, your Apple TV will automatically restart again.

Those steps are from this article: Update your Apple TV You'll also want to ensure that any other devices, like your TV are fully up-to-date as well.

If this continues, more steps you can take to see if it'll resolve this is to follow the steps in this article: If your Siri Remote or Apple TV Remote isn't working

If none of those steps help, please reach out to Apple Support for further help with this link: Get Support

Best wishes.