What is the name of this older Tv show?? I cant remember!?

Ok a few years ago I watched this 'reality' tv show and Icannot remember the name. I'm just going to write all the details of the show I remember,I KNOW ITS LONG! so there were about ten people and they each had their own colored small room they were put in with a number. Each person was then referred to by their number and a computer woman thing gave them tasks or would challenge them in some way by making them want to quit or give up and if you wanted to you could press this big red button sayig you quit and it would eventually get down to one winner over time. AHHH its killing me cause I loved it lol, but for some reason I think its like ACE or ONE in the title? help?