I've attached my settings file. I notice that the 19.2 lines are still there even after completely deleting the tuner config using the steps above. I have never selected the 19.2 satellite, only the 28.2E Astra one in the tuner set up. Perhaps a bug in the tuner setup screen adding some kind of default? Suspect 19.2 is the first in the available list and is being added erroneously?
This doesn't seem to be the cause of my original issue though, as I can now again record multiple channels.