Ms Bennett's appointment signals a growing trend at the BBC. In 1978, when Patricia Thornton was made first female correspondent, the reaction from male commentators was condescending. Six years later the BBC launched a major inquiry into why so few women had top jobs in the corporation. But it wasn't until 1990 when John Birt, as directorgeneral, introduced an anti-sexism database, that the tide began to turn. Today around 32.8 per cent of senior management is female.