accessing dvs on ota


I have a skyworth tv and there does not seem to be any setting to access dvs both in the menus or a button on the remote.  I am using over the air tv connected to an out side antenna.  Are there any exturnal devices that would access sap audio?  This is my only tv source.  My tv is an android tv so maybe the smart tvs don't have any setting for sap or dvs.

Brian Sackrider

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