Why aren't there more women on radio and tv as experts, commentators and presenters? Steve Hewlett explores the issues on The Media Show this week with a range of insiders: Anne Morrison, Director of the BBC Academy, who ran a day of training for women experts last week with more planned; Fiona Fox, Director of the Science Media Centre which links news programmes up with expert scientists; Lis Howell, Director of Broadcasting at City University, who has been monitoring the number of women on news programmes; Emma Barnett, the Telegraph's Women's Editor; Chris Shaw, Editorial Director of ITN Productions and Executive Producer of The Agenda and Tamy Hoffman, Interviews Editor of Sky News.The producer is Simon Tillotson.