04:00This Sceptred Isle: The 20th CenturyEpisode 22: 1929 - Red Buses and the Wall Street CrashBBC Radio 7 Duration: 15 minutes Thu 6th Aug 2009, 04:00 on BBC Radio 7Across the decades, Christopher Lee's vivid account of Britain's fast-paced history. Narrated by Anna Massey, with Robert Powell.GenresDramaHistoricalFactualHistorySeriesThis Sceptred Isle: The 20th Century Source: BBC Online