“She keeps me grounded. She’s been my rock.
“Without being too soppy, she was always there for me, which is the main thing in my business because it can be precarious.
“You’re very exposed, and it’s always good to be able to get that reassurance.”
John has had a long career on television so far, after beginning in print journalism.
His first big break came in the children’s show Newsround, which was originally called John Craven’s Newsround.
He left the show in 1989 when he began presenting on Countryfile.