NebulousSeries 1Episode 3: The Dust Has LandedBBC Radio 4 Extra Duration: 30 minutesFirst broadcast: Mon 19th Jan 2009, 22:30 on BBC Radio 7Latest broadcast: Wed 7th Sep 2011, 22:30 on BBC Radio 4 ExtraThe Professor teams up with his ex-fiance, Dr Erica Flazenby, to give the earth a spring clean. Sci-fi comedy with Mark Gatiss.GenresComedySitcomsBrandNebulousSeriesNebulous: Series 1 Source: BBC Online