At present, the format is spread in a number of countries around the world. A group of people (called the Housemates) live together in an isolated house. 24 hours a day their life is recorded by hidden cameras in all the rooms in the House. They do not have TV, Internet, newspapers, even watches on their wrists. The Housemates are completely isolated from the outside world. Every week, each one of them must enter the Diary room and nominate two of the other people for public eviction. The two or more housemates with most negative votes become nominated. For almost a week the TV viewers have to decide which of them to be evicted, voting via SMS or phone calls. Every week the Housemates have a week task. Depending on whether they perform their task successfully or unsuccessfully, their week budget is increased or decreased. During the final week, the viewers vote which one of the remaining people in the House to be the winner. He or she wins a big cash prize.