If you have audio on most channels, but have silence on some or all of your local network channels, you may have the Secondary Audio Programming (SAP) turned ON. To turn OFF the SAP on your TV:
- Press the Menu button on your TV remote. Scroll down to the audio settings.
- Locate the SAP option and turn it off.
Your audio should return. If unable to locate this option, please refer to the manufacturer’s guide for your TV for more information.