Emma Willis, who lives with her husband in Hertfordshire, also told the BBC: “We wanted to get involved because we’re living it at home.
“We are worried about the impact that smartphones are having on our kids.”
The couple share three children, 15, 12 and eight years old – similar ages to that of the Year 8 pupils in the programme.
Harry, a pupil who took part in the experiment, said that he used his phone for “at least nine hours a day” before filming the documentary, “looking at YouTube, gaming and texting”.
He described the moment he had to give up his phone: “It was dreadful.
“It’s like a part of me is missing and something that I need in my life is now in a box for three weeks.”