Liverpool's Keith Chegwin almost appeared on the original series of I'm a Celebrity...Get Me Out Of Here in 2002, but never made it onto the show.
Much-loved presenter Keith died in 2017 aged 60, following a battle with lung disease idiopathic pulmonary fibrosis.
Back in 2002 he headed to Australia as a "back-up campmate" in case anyone dropped out of the show, but he was never needed, so instead enjoyed a free trip Down Under - reports Mirror Online.
Ant and Dec revealed in their autobiography 'Ooh! What a Lovely Pair: Our Story' a surreal experience they'd had with Cheggers.
Ant said: "When we arrived at the big hotel, we had the first of several thousand surreal experiences we'd face over the next few weeks.
"We bumped into Keith 'Cheggers Plays Pop' Chegwin. Every year on I'm A Celebrity they fly stand-ins out in case any of the cast get ill or realise what they're getting themselves into and, in series one, Cheggers was that stand-in.
"One thing about Cheggers is that he's a very heavy smoker and, when we ran into him, he'd just got off the 24-hour flight from London.
"To combat his cigarette cravings on the plane, he'd come up with a carefully thought-out plan - he would wear nicotine patches, chew nicotine gum and drink copious amounts of Coke.
"All of this meant that when we saw him, he was completely wired. He was also keen on showing us some of the home-made footage he'd already taken around the hotel."
Ant then went on to add: "When we bumped into Cheggers, he had just finished filming a cassowary [a type of Australian emu] attacking its own reflection in a car door.
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"So there we were, jetlagged, standing in our second hotel of the day with wired children's TV legend Keith Chegwin showing us home-video footage of a giant bird attacking its own reflection."
Ant and Dec also spoke about Keith's almost appearance on I'm A Celebrity...A Jungle Story last weekend.
Ant said "We had stand-bys in those days - Keith Chegwin - just in case anybody pulled out"
Dec said: "And he never got on."
Ant replied: "He never got on, he just hung around the hotel with his camcorder...poor Keith Chegwin."
The new 2020 series of I'm A Celebrity arrives this weekend, with the confirmed line-up of contestants including Shane Richie, Beverley Callard, Victoria Derbyshire, Sir Mo Farah, Vernon Kay, and Jessica Plummer.
*I'm a Celebrity...Get Me Out Of Here starts on Sunday at 9pm on ITV
