Fiona Bruce has landed the job of following Sir Alan Sugar around for a fly-on-the-wall documentary about his life – and it wasn’t all sweet talk.

Ten O’Clock News presenter Fiona was chosen after filming a documentary on US billionaire Bill Gates.

The show, to be screened on the BBC in January, will feature multi-millionaire Sir Alan in his office, on his plane and at home with his family in Marbella, according to reports in the Daily Mirror.

Fiona, who also fronts the BBC’s Antiques Roadshow, said of the Apprentice host: “There is a sweetness, but I have been on the receiving end of the bite and the bark and it’s pretty fearsome.”

But Fiona admitted that the straight-talking businessman sometimes got fed up with her persistent questions.

She added: “I was asking him about various things and it was the end of a very long day and he just got really fed up. It was a bit like being in front of a hairdryer at very close quarters. He’s not backwards in coming forward in his opinions.”