Phillip Schofield reportedly turned down a selection of big money TV offers before choosing to sign up for Cast Away - 16 months after his departure from This Morning.
The presenter, 62, has secretly filmed Channel 5 special Cast Away, in which he lives on a tropical island in the Indian Ocean for 10 days.
An insider has now said that over the past few months he has had a steady stream of offers come in but 'steadfastly turned them all down'.
It has been reported that he consulted with his family and friends before saying yes to this show - the details of which were kept 'top secret'.
A new report suggest he decided to take on the challenge so he could share his story in an 'unedited and honest' way.
He will discuss his acrimonious departure from ITV and daytime show This Morning while fending for himself on the island, located off the coast of Madagascar.
Viewers will see the axed presenter discuss the emotional impact of his exile from mainstream TV after news of his affair with a 20-year old runner on daytime show This Morning came to light.
A source told The Sun: 'Over the past few months Phil has had quite a few offers for various things - but has steadfastly turned them all down.
'This sort of challenge has always appealed to him though and after consulting with friends and family, he decided to go for it. It's all been top secret, and has been an incredibly quick turnaround in order to keep the news quiet.'
'With 10 days to himself, no camera crews or production around, he shot some unbelievably raw footage - some of it makes for tough, emotional viewing.
'But he wanted a chance to share his story, unedited and honest, and let viewers see another side to him.'
A representative for Phillip has been contacted by MailOnline for comment.
The three-part series will air on Channel 5 from Monday evening and will be Schofield's first TV work since leaving This Morning under a cloud in 2023.
It was May 2023 when the presenter admitted to having a relationship with a much younger male colleague on This Morning, and later lying about it.
He described their romance as 'unwise but not illegal' and explained it took place during his nearly 30-year marriage to Stephanie Lowe, with whom he is a parent to two children.
Schofield subsequently resigned from both This Morning and ITV and said that he was 'so very sorry' to Lowe for being unfaithful.
At the time, it was reported that Steph had been left 'devastated' by the revelation and angry that her husband had lied to her.
However, it was later revealed she is choosing not to file for divorce because she does not want him to 'fall any further' then he already has, and despite everything, 'the love is still very much there.'
As well as the breakdown of his marriage, Schofield's relationship with co-host Holly Willoughby faltered in the midst of the scandal, with the pair understood to be at loggerheads.
Schofield's daughter Molly is now his publicist after she quit the talent agency that once represented her father.
PR guru Mark Borkowski says his tepid return to the public eye has come after a year away to disappear and get himself together.
Calling him a rare talent, Borkowski said: 'He's testing the waters. But audiences are very forgiving.'
Schofield told the BBC in an emotional interview last June the affair had finished his career and revealed that the fallout had left him feeling suicidal.
He told how his two daughters - Molly and Ruby - had saved his life and had 'guarded me and won't let me out of their sight'.
He admitted during the sit-down interview with Amol Rajan denied he had groomed the younger colleague, before telling critics: 'Do you want me to die? Because that's where I am.'
Schofield also insisted he had not 'groomed' his young lover, despite first meeting him when he was 15.
He said: 'Attraction is attraction. It's no different in the gay world as it is in the heterosexual world or in the lesbian world.
'There shouldn't be a difference. This is where homophobia comes in. We did first meet when he was 15, I visited the drama school [he attended].'
He said the fallout from his admission that he lied about his affair with a younger male colleague had been 'relentless', revealing he has had suicidal thoughts.
Schofield said: 'My girls saved my life. They said last week they haven't left me for a moment. They've been by my side every moment because they're scared to let me out of their sight. What is that like for daughters to have to go with something like that?
'And they said to me, 'don't you dare do this on our watch. We're supposed to be looking after you'. If my girls hadn't been there, I wouldn't be here, because I don't see my future.'
Schofield also slammed 'a handful of people' with 'persistently loud voices' in a statement days after leaving This Morning - and rejected claims of a 'toxic' culture on the programme.
The daytime show was plunged into meltdown since revelations over Schofield's relationship with a much younger man at ITV emerged with the channel losing millions of pounds in sponsorship deals and some guests refusing to appear on the sofa.
But speaking out on social media in May 2023, Schofield hit out at those 'with a grudge against me'.
In a statement posted on his Instagram, the presenter said: 'Now I no longer work on This Morning I am free to say this. I hope you have noticed that it's the same handful of people with a grudge against me or the show who seem to have the loudest voice.
'This Morning IS the best show to work on, with the best people. In all the years I worked there there was no toxicity. You can listen to those persistently loud voices if you like.
'But the thousands of guests over the years, thousands of staff and crew, hundreds of presenters and contributors all know it, it IS a family of wonderful, talented, kind, hard, working people.'
Bosses at ITV published the much anticipated review into the scandal and allegations of toxic working culture in December. It was conducted by an independent lawyer, Jane Mulcahy KC.
One employee told the Mail of their 'sheer bewilderment' that only one junior worker was aware of the relationship.
The report found that ITV did not cover-up the relationship and that station bosses had made 'considerable efforts' to discover the truth in 2019 – four years before the affair broke.
The external review found that the channel was 'unable to uncover the relevant evidence' until Schofield's own admission in May 2023, when he told the Mail that he had been having the relationship and later lied about it.
ITV bosses have said both Schofield and his former lover, a runner who has never been named, 'repeatedly denied' allegations of a relationship until the star dramatically quit ITV and formally apologised.
It added that only one person out of 48 interviewed – a junior employee – said they knew about the presenter's relationship with a younger male former colleague before he revealed it in May.
Mulcahy revealed that Schofield refused to take part in the review into the circumstances surrounding the his departure because of 'the risk to his health'. She added that she was informed that the host's mental health had since deteriorated.
Schofield's former colleague and lover also declined to participate in the report.
However, staff at ITV have been left cross, accusing the report of being a 'waste of time'.
The findings did reveal that there was a culture of silence at the channel, saying that junior employees at ITV's This Morning still fear that speaking out will damage their careers in the industry.
