A Schedules Direct membership ($25USD/year, 7-day free trial) needs to be established prior to this step. There is no configuration to perform on their website which only manages the XML server (SD-DD); EPG123 uses their JSON server (SD-JSON).
WARNING: Schedules Direct limits the number of lineup additions to a maximum of 6 in any 24-hour period. Ensure all the desired lineups are subscribed to within that limitation. The number of lineup additions will only be incremented once step 8 is completed by clicking the [Apply & Exit] button.
NOTE: Stations that are common within and between subscribed lineups are linked. This means that if a station is selected for download in one lineup, it will also be selected in the other lineup(s). The same is true when a station is de-selected.
NOTE: Be aware of stations assigned to the same channel number. Sometimes a provider will list both SD and HD stations on the same channel. For the most accurate guide, only select the station that is appropriate to your specific source.