Be nice if they included something where Satellite stations would just use the data from the mother station.Yeap, that's how it was explained to me. They actually use the "TSID" (it's a hex value, as I recall) that's transmitted as part of the PSIP data that the Dish receivers use. This TSID has to match in a database on Dish's end and if it doesn't, as you say, it defaults to "Digital Service".
Would help a lot in State's with statewide PBS's, like MPT around here. I see their Baltimore stations, but since the Annapolis station is the mothership, no guide data.