14:15This Sceptred IsleEpisode 123: Death of a Prime Minister, the Sacking of Pitt and a New CalendarBBC Radio 4 Extra Duration: 15 minutes Thu 26th Apr 2012, 14:15 on BBC Radio 4 ExtraPitt's vision of becoming Prime Minister looks remote and Britain comes to dominate world trade. Narrated by Anna Massey.GenresDramaHistoricalFactualHistorySeriesThis Sceptred Isle Source: BBC Online