Esther!

Dame Esther Rantzen was one of Britain's most successful and popular presenters. She began working for the BBC in the mid-1960s, but was best known for the long-running series That's Life, which blended campaigns with humour. She was a trailblazer who took up many causes - including setting up the charity Childline. Katie Razzall looks back on Esther's career and legacy with her friends and former colleagues.