Many videos and TV shows have secondary audio tracks. The most important is the Audio Description (also called Descriptive Audio) track that provides narration to assist viewers with low vision. All new NetFlix, Amazon Prime, and other original productions, for example, have this track. It would be great to capture that as PlayOn records the selected shows. It is turned off or on in the software used to play the show (e.g., iTunes, Apple TV, VLC, etc.) Thanks!
Audio Description tracks