Some years ago I watched a movie I can't remember the title of. The action is kind of blurry as well, but I seem to remember some kind of 'game show' where the contestant got a 'new life'. The main character escapes through some service tunnels, I think, and eventually ends up in a city nearby... or something..? Does it ring any bells, anyone?
Not a lot to go on there, but it puts me in mind of The Island: there's the 'competition' where winners get to leave to go to the Island (but actually are to be used for spare parts), Lincoln and Jordan (Ewan McGregor and Scarlett Johansson) escape the facility through service tunnels and end up in a city.
That's almost certainly "Logan's Run". There was a short-lived television show based on the film, too, but the film is what you're going to probably want to see, especially if you don't remember it very well (it had some really nightmarish plot twists to the elements you remember that you might not have appreciated if you saw it as a kid).
While the question's marked as answered, if others are looking for the same sort of film, I'd mention The Running Man (1987), where Arnold Schwarzenegger plays Ben Richards, a cop who was blamed for a massacre which wasn't his fault.
He's sent to prison and breaks out with some other inmates. He tries to escape but the woman whom he dragged into his plan turns him over to the authorities. Damon Killian, who is the host of THE RUNNING MAN a game show wherein convicted felons are given the chance to run to freedom but have to elude the stalkers; men who hunt them down and kill them.
I do not remember the exact actions of him escaping the (game show) limbo but What goes around (Sorte kugler) is a Danish movie with a game show where the protagonist has to revisit events in his life and improve his terrible and selfish actions he did back then. Good revisits are rewarded with "white balls" and bad revisits are rewarded with "black balls". Filling the bar with white balls will give him a new chance of life.