Big Brother USA season 4

Big Brother 4 is the fourth season of the reality television series Big Brother. The format of the program remained largely unchanged from previous seasons: a group of contestants, referred to as HouseGuests, are enclosed in the Big Brother House under the surveillance of cameras and microphones. Each week, the HouseGuests vote to evict one of their own until two Houseguests remain on finale night. The winner will be decided by the last seven evicted HouseGuests, collectively known as the Big Brother Jury. Julie Chen returned to host this season. The winner of the series won a $500,000 grand prize, while the runner-up won $50,000. This season was also broadcast on E4 in the United Kingdom, beginning near the end of that country's fourth series.

HouseGuests are sequestered in the Big Brother House with no contact to or from the outside world. Each week, the HouseGuests take part in several compulsory challenges that determine who will win food, luxuries, and power in the House. The winner of the weekly Head of Household competition is immune from nominations and must nominate two fellow HouseGuests for eviction. After a HouseGuest becomes Head of Household, he or she is ineligible to take part in the next Head of Household competition. HouseGuests also take part in food competitions in which they must win in order to eat regular foods. Losers of the competition are put on a peanut butter and jelly diet. The winner of the Power of Veto competition wins the right to save one of the nominated HouseGuests from eviction. If the Veto winner exercises the power, the Head of Household must then nominate another HouseGuest for eviction.

On eviction night, all HouseGuests except for the Head of Household and the two nominees vote to evict one of the two nominees. This compulsory vote is conducted in the privacy of the Diary Room by the host Julie Chen. In the event of a tie, the Head of Household must cast the deciding vote, announcing it in front of the other HouseGuests. Unlike other versions of Big Brother, the HouseGuests may discuss the nomination and eviction process openly and freely. The nominee with the greater number of votes will be evicted from the House on the live Thursday broadcast, exiting to an adjacent studio to be interviewed by Chen. HouseGuests may voluntarily leave the House at any time and those who break the rules may be expelled from the house by Big Brother. The final seven HouseGuests evicted during the season will vote for the winner on the season finale. These "Jury Members" will be sequestered in a separate house and will not be allowed to watch the show except for competitions and ceremonies that include all of the remaining HouseGuests. The jury members will not be shown any Diary Room interviews or any footage that may include strategy or details regarding nominations.

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Wikipedia