How do I take advantage of Secondary Audio Programming (SAP)?
Many modern stereo television sets have a feature in their audio equipment that allows the reception of sound other than the main audio for the program. This feature is called Multi-channel Television Sound (MTS). A TV set with MTS can receive mono sound, stereo sound, or Secondary Audio Programs (SAP). The SAP feature allows a TV station to broadcast other information to the viewer through the audio receiver system. That other information could be the same program audio in another language, or something completely different, such as weather information or Descriptive Video Services (DVS) for the visually impaired. As an example, ABC regularly provides Spanish audio commentary during “World News Tonight” and “Monday Night Football” as well as other selected sporting events and specials. They do this using the Secondary Audio Program (SAP). Viewers who had the SAP feature turned on could hear the game in Spanish. Activating or deactivating the SAP is done on most television sets through
