I don't know if anyone else finds this data helpful, Bernd Friedewald (DK9FI) provides a very comprehensive database file of all broadcast and utility stations.
The data files aren't free, but they do take him many hrs to validate and maintain, so IMO represents a real service.
I don't know if John would consider how a user who purchased this service may be able to integrate the files into their KIWI display. If not users may want to review this for themselves. Just for the record I don't have any association with or financial involvement with DK9FI.