07:00Carrie and David GrantIntronauts, Walthamstow Wassail and London Art FairBBC Radio London Duration: 3 hours Sat 5th Jan 2019, 07:00 on BBC Radio LondonJason Rosam and Kelly-Anne Smith find out about 'Intronauts' and the London Art Fair.GenresEntertainmentBrandCarrie and David Grant Source: BBC Online