Channel 4 chief executive Alex Mahon has said the Russell Brand allegations show that "terrible behaviour" towards women has been "historically tolerated" in the TV industry.Ms Mahon addressed the claims against the former Channel 4 presenter as she opened the Royal Television Society's Cambridge Convention on Wednesday.

Channel 4 chief executive Alex Mahon has said the Russell Brand allegations show that "terrible behaviour" towards women has been "historically tolerated" in the TV industry.Ms Mahon addressed the claims against the former Channel 4 presenter as she opened the Royal Television Society's Cambridge Convention on Wednesday.