Had a comment which lead to including a new substitution field - OutputTarget ($OT).
Then modified TotalRecorder to allow substitution to be called. Utimately all devices will have this support when invoked from command line but doing it as other changes happen in similar area. Did it in a way that will not affect existing installations - but would prefer to remove the "old" method.
The person who wanted it has written a useful page showing how he configured things.
- TwinHan VisionDTV
One user is finding that the recording is sometimes from the wrong broadcast type (e.g. radio rather than TV). I cannot see anything wrong with what I am doing - but looking.