Interesting article in the Guardian about the shift in preferences by young people who are increasingly likely to listen to playlists and subscription music services than they are to listen to radio.
I know takeover radio in Leicester had a transmitter fault some time back and it took several weeks for anyone to notice as they all listen online. Radio 2 funky did a audience survey and the interest in their FM license wasn’t very high. Demon no longer see the value in FM.
On the other hand stations for older audiences are thriving despite limitations such as AM.