Radio 4 is in trouble. Listening figures for the station have dipped to their lowest level since 2007. The Today programme, Radio 4’s flagship morning show, is doing particularly badly: its audience fell 12 per cent year on year, from 6.5 million to 5.7 million, according to Rajar. For anyone who has tuned in to Radio 4 recently, this decline won’t come as a surprise.