Since Siri cannot be asked to play any BBC Radio station on the HomePod directly (they are not on TuneIn) I've been experimenting with using iOS Shortcuts to do the same job. So I create a Shortcut on my iPhone to do this and running it from the iPhone works just fine.

The problem I'm having is giving the Shortcut a name that works.
You can see the name on the Shortcut above is "R4 Everywhere". But it will not work if I ask Siri on any of the Homepods to run it. I either get a random radio station or some extract from Wikipedia, or Siri says that it "Cannot find R4 Everywhere".
It also appears that if "Radio" is in the name of the Shortcut it will play any radio station it first thinks of.
Other words in the Shortcut that do odd things are: "Play"; "Four" (4); "Kitchen"; "Living Room"; and many others.
Can anyone suggest a form of words that will actually work?

The problem I'm having is giving the Shortcut a name that works.
You can see the name on the Shortcut above is "R4 Everywhere". But it will not work if I ask Siri on any of the Homepods to run it. I either get a random radio station or some extract from Wikipedia, or Siri says that it "Cannot find R4 Everywhere".
It also appears that if "Radio" is in the name of the Shortcut it will play any radio station it first thinks of.
Other words in the Shortcut that do odd things are: "Play"; "Four" (4); "Kitchen"; "Living Room"; and many others.
Can anyone suggest a form of words that will actually work?