The show is being developed by Mentorn, the makers of another Fox reality show 'Paradise Hotel', and like other Fox reality shows, such as 'Tempation Island', it focuses on a group of singles in a luxury resort.
The show will be the closest thing so far to the 1998 film 'The Truman Show', where Jim Carrey, unbeknownst to him, grew up in a reality TV show.
Fox executives are saying 'Forever Eden' could run for anything from six months to three years.
Michael Darnell, the executive vice-president of alternative programming reality at Fox and TV guru, said: "The idea is they are not going on a reality show. They are actually divorcing themselves from their lives. They will become like soap stars, because they are going to be there for what could be a very long time."
Fox has yet to release details about the mechanics of the show, how the contestants will be added and taken away, but it has said the longer they stay they more money they can make.
If voted out, contestants get to keep any cash they have accumulated but if they leave for other reasons, such as family or friends, they will not make a penny.
"Even though they are living in luxury and it's going to be wonderful, we are going to introduce elements to make it not so wonderful," Darnell said.
The elements introduced, he said, could include ex-boyfriends or girlfriends from the contestants' past, which was a trick used successfully on last year's 'Big Brother' on CBS in the US.
'Paradise Hotel' also featured loved ones making occasional appearances.
Fox has so far ordered 25 episodes of 'Eden' and casting is already well under way for broadcast this summer.
The luxury resort will take the contestants away from home and then allow them to get on with their lives under the glare of the TV cameras.
Also in the Fox reality TV pipeline is more Fox reality horror with 'My Big Fat Obnoxious Fiance', which starts later this month and follows a female contestant and her family putting up with a loutish boyfriend and his family, who are played by actors.
The woman will a lot of cash if she can last through to a televised wedding. However, she does not know that his family are actors.
"We're in post-production now and it looks good," Darnell, who was also behind 'Joe Millionaire' and 'The Simple Life', said. "It's a very entertaining concept."
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