09:57International Women's Day on 4 ExtraShazia Mirza's Hero - Joan RiversBBC Radio 4 Extra Duration: 3 minutes Thu 8th Mar 2018, 09:57 on BBC Radio 4 ExtraShazia Mirza's hero from the BBC archives, US comedian Joan Rivers.GenresFactualLife StoriesBrandInternational Women's Day on 4 Extra Source: BBC Online