Sian Williams leaves BBC Breakfast for Radio 4 Eventually, it was just an obvious decision. Williams worked as a producer for Radio 4 current affairs programmes before becoming a television presenter, and said she was thrilled to be returning. The new-look Saturday Live will be extended from one hour to 90 minutes. Excess Baggage, the travel programme that followed it, will be scrapped but its presenters, Sandi Toksvig and John McCarthy, will have a regular spot within Saturday Live. It's the kind of programme that draws you to the radio and makes you listen. We'll continue to do all the bits that listeners love, but we are thinking of new things to bring in," Williams said of the show, which draws a regular audience of nearly two million. She presents her final edition of BBC Breakfast on March 15 - the programme will continue with Bill Turnbull and Susanna Reid - and joins Saturday Live on May 5. Williams admitted that leaving BBC Breakfast will be a wrench after 11 years and a successful partnership with Bill Turnbull, her co-host. Asked if viewers should ready themselves for a tearful farewell, she said: "I hope not on air, I really do. We've got an anti-giggling strategy and so we'll probably have to have an anti-blubbing strategy on the last day as well. We've all got to move on and things evolve and change, but Bill is one of my best friends. We first worked together more than 20 years ago and he will always be one of my best friends. "So I'll be sad to leave," she said, "but I am looking forward to not getting up at 4am for the first time in 11 years." Gwyneth Williams, Controller of Radio 4 said: "I am delighted to have Sian back on Radio 4 and I can't wait to hear her hosting the programme with Richard. She brings her own unique brand of charm and experience, formidable interviewing skills and we are lucky to have her. Extending Saturday Live is an idea I have had brewing for quite some time and Sian has been part of my thinking from the start. She is someone I know the Radio 4 audience will take to their hearts.