The 54-year-old, who came out publicly seven years ago after years of hiding his sexuality from the media, said he would have liked to have told his mum the truth while he still had the chance.
"She heard me on the phone to my then boyfriend, who was very obviously gay, very camp. She said to me: 'I never want you to feel there’s something you can’t tell me, and I will never judge or discriminate.'
"That was the point I should have gone: "Mum, I’ll tell you I’m gay," he said.
Winton recently insisted that he has no regrets about being remembered for hosting Supermarket Sweep.