Bill first joined Breakfast as a reporter in 1988, and says he feels like he's never really left.
He's been a presenter on the programme since 2001.
Bill's first film for the programme all those years ago was about wild flowers, he says.
He went on to file more memorable stories for the programme from around Britain and Europe, including the Lockerbie disaster and the Romanian Revolution of 1989.
It was, Bill remembers, a steep learning curve: learning the techniques of making television amid rapidly changing events.
As a News Correspondent, Bill later covered everything from presidential elections to street riots in more than 30 countries.
He did a four year stint as the BBC's Washington Correspondent - which included a rain drenched appearance on Breakfast, live in the middle of a Florida hurricane.
He's also been a regular presenter of BBC News 24 and Radio Five Live, before joining the Breakfast presenting team full time.
Bill is married with three children. In his spare time he looks after his chickens, and rather more hazardously, four hives of bees.
He likes to unwind (or should that be wind up?) by watching what he calls the finest football team in Division Two: Wycombe Wanderers.