For Analog Channels:
Enabling Described Video (DV) on analog channels via the Secondary Audio Program (SAP) setting on your TV:
When Described Video (DV) is passed through with an analog channel, it is only accessible on that channel through the use of the SAP feature, which is available on most televisions. The directions for activating the SAP feature will vary by TV brand. Eastlink recommends that customers refer to the owner's manual that came with the TV to program the SAP (sometimes identified as the LANGUAGE setting).