Page "Big Brother (TV series)" Paragraph 6

At regular intervals, the housemates each privately nominate a number of fellow housemates that they wish to see evicted from the house.

The housemates with the most nominations are then announced and viewers are given the opportunity to vote via telephone for whom they wish to see evicted.

The only known exception to this process is the American version, in which the housemates themselves vote to evict each other.

After the votes are tallied, the " evictee " leaves the house and is interviewed live by the host of the show, usually in front of a studio audience.