SAP stands for Second Audio Program. When you select a language other than English for SAP, your TV receives both the English version and the selected language audio whenever SAP is being broadcast. When SAP is not being broadcast, you receive the English program audio only. However, when the SAP audio is sent along with the English program audio, your TV automatically switches to the SAP channel. You know your TV is programmed to receive SAP if you hear the commercials in English and other programs in the selected language.