Doctor WhoInvaders From MarsEpisode 1BBC Radio 7 Duration: 30 minutesFirst broadcast: Fri 21st Sep 2007, 18:00 on BBC Radio 7Latest broadcast: Sat 22nd Sep 2007, 00:00 on BBC Radio 7New York, 1938. Orson Welles prepares to make an historic broadcast from the studios of CBS and there's a new gumshoe in town.GenresDramaSciFi & FantasyBrandDoctor WhoSeriesDoctor Who: Invaders From Mars Source: BBC Online