Big Brother 18 (U.S.)

Big Brother 18 is the eighteenth season of the American reality television series Big Brother. The season premiered on June 22, 2016 on CBS with a two-hour season premiere and ended with a 90-minute season finale on September 21, 2016. Julie Chen returned as host. On September 21, 2016, Nicole Franzel won the game in a 5-4 vote against Paul Abrahamian. The series lasted for 99 days making the longest running series in 16-year history.

On September 24, 2014, CBS announced that it had renewed Big Brother for its 17th and 18th editions for broadcast in summer 2015 and 2016, respectively. The series would continue to be hosted by Julie Chen.

The format has changed slightly from previous seasons. The contestants, referred to as "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. At the start of each week, the houseguests compete in the Head of Household (HoH) competition. The winner of the HoH competition will select two houseguests to be nominated for eviction. Each week, six houseguests are selected to compete in the Power of Veto (PoV) competition: the reigning HoH, their two nominees and three houseguests selected by random draw. The winner of the PoV competition wins the right to either revoke the nomination of one of the nominated houseguests or leave them as is; if the veto winner uses this power, the HoH must immediately nominate another houseguest for eviction. The PoV winner is also immune from being named as the replacement nominee. This season's Have-not room features bumper cars. On eviction night, all houseguests vote to evict one of the two nominees, with the exception of the nominees and the Head of Household, who is only allowed to vote in the event of a tie, in which case they must do so publicly. This compulsory vote is conducted in the privacy of the Diary Room. Unlike most other versions of Big Brother, the houseguests may openly and freely discuss the nomination and eviction process. The nominee with the majority of votes will be evicted from the house on the weekly live broadcast, exiting to an adjacent studio to be interviewed by Chen, after which the cycle begins again. Houseguests may voluntarily leave the house at any time and those who break the rules may be expelled from the house. The last nine evicted houseguests will form the Big Brother jury and vote for the winner during the season finale. The 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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