We're into Proms season, so no Do3 next week. Instead, at 9.15, a repeat of the Irish writer Abbie Spallen's Rapture Frequency.

"Listening to the black box recording of an ill-fated transatlantic flight, analyst Michael Shorthall stumbles across an unexpected sound. Interference, white noise, or could it possibly be proof of something more celestial? Abbie Spallen's story of obsession and one man's extraordinary quest."