I found channels that SD supports in one lineup, but that are missing in another. For example French channel "LCP" id 53760 is not in the lineup "ZZZ-19.2E-DEFAULT" even though the channel is freely available on this satellite. Same with Korean "Arirang" channel, but I don't know on which European lineup I had found it.
And I think it would be good to have some more lineups of already existing channels, especially for satellite. For example European Hotbird 13°E has channels from Italy, Germany, Switzerland, France and others. I find it difficult to get as much of these channels as possible with adding only few lineups. I added a Swiss cable lineup to get schedules for this European satellite.