The Archers in in London on 27 July 2012, where the theme tune was played at the beginning of a segment celebrating British culture: the sound of a radio could be heard being tuned in as "Barwick Green" was played. BBC Radio 4 Extra ran an occasional short supplement, "Ambridge Extra", between 2011 and 2013, featuring characters away from the Ambridge environs. Series 1 and 2 had 26 episodes and series 3, 4 and 5 had 20. The reason offered for non-renewal was limited resources. Two organisations dedicated to the programme were established in the 1990s. Archers Addicts was the official body,
PM (BBC Radio 4) being the first radio news programme to feature its own theme tune. Three have been used, with the last ending in 1997 in the aftermath of the death of Princess Diana. The First "PM" theme tune was by John Baker and the BBC Radiophonic Workshop. The second was produced by Dudley Simpson, with the final used between 1993 and 1997 was by George Fenton. Notable presenters after William Hardcastle included Steve Race, Brian Widlake, Robert Williams, Chris Lowe, Joan Bakewell, Susannah Simons, Rachael Heyhoe Flint and Valerie Singleton (a former Blue Peter presenter — in pre-interview chats, junior ministers "inevitably"