You can change the audio language, enable audio description, and change other audio options for a show you're watching, if these options are available for that show through the Secondary Audio Program (SAP).
To select an audio option for the current show:
While watching any show, press on the remote control.
The Info bar appears at the bottom of the screen.
Press on the remote
Select Language and press ok.
Select a language from the list of languages or other audio options available for the show.
The Info bar disappears in a few seconds. Or, you can press on the remote to clear the bar.