@MacDaddy77, go download the owner's manual for your TV and follow the instructions to enable ARC.
https://support.vizio.com/s/article/...language=en_US
1. From the System menu, tap CEC. The CEC menu is displayed.
2. Tap on CEC:
- Select Enable to use the Tablet Remote to control CEC devices connected to HDMI.
- Select ARC Only for plug and play of an audio device connected to the HDMI ARC input. The ARC setting does not support video devices connected to the audio device (Select Enable to enable support for these devices).
- Select Disable to turn CEC off.