Add Nebula to your TV list and set up the remote buttons. Follow the on-screen instructions to complete the setup. You can also check these instructions:

1. Go to Settings > Set up Remote Buttons > Add Device > TV or press the Settings button on the remote.

2. Select Nebula as the TV brand.

3. Complete the setup by following the instructions.

After a successful setup, you can control the volume, power, and input of your device by using the remote.

If you still have any questions or concerns regarding the remote buttons setup, please contact us for further assistance.