The 54-year-old, who shares 22 children with his wife Sue, 50, decided to see if he could find his biological mother and filmed it all part of a special episode for the programme.
Sophie Radford, the eldest daughter of Sue and Noel Radford - and part of Britain's 'biggest family' - has updated fans on the state of her marriage - and it's not good news.
Sue and Noel Radford , from Morecambe, Lancashire, had booked for their large brood to go abroad to America, flying out together on Sunday from Gatwick Airport. But it didn't go to plan.
Sue and Noel Radford , who live in Morecambe and share a whopping brood of 22 children, have tripled their cash and now have a net wroth £975,000, The Sun has reported.