00:45Comedy ZoneNorthern ComedyBBC Radio Scotland Duration: 5 hours, 15 minutes Sat 28th Apr 2012, 00:45 on BBC Radio Scotland Highlands and IslandsAs the Leeds Laughter Lines festival gets underway, Julia Sutherland celebrates the wit and humour of northern English comedians.GenresComedySketchComedyStandupBrandComedy Zone Source: BBC Online