And how do you know which is active and which is not? Are you selecting each and every channel and checking it or just looking if it has EPG data? Even after the channel stops working, the EPG entry will be valid until it expires. If you get EPG from stream, it is about 7 days. If someone is using EPG importer, that service reference will continue getting EPG until someone tells Doglover to remove it.
You would have been better off going into satellite list, it's green button instead of red that you pressed. Then remove all of 28.2. That was the advice given.