Big Brother Bulgaria

Big Brother is an Australian reality show based on the international Big Brother format created by John de Mol. Following the premise of other versions of the format, the show features a group of contestants, known as "housemates" who live together in a specially constructed house that is isolated from the outside world. The housemates are continuously monitored during their stay in the house by live television cameras as well as personal audio microphones. Throughout the course of the competition, housemates are evicted from the house - eliminated from the competition. The last remaining housemate wins the competition and is awarded a cash prize.

A Canadian reality television show in which a group of contestants, known as "house guests", are sequestered in the Big Brother House, under the surveillance of cameras and microphones, for the chance to win a grand prize of $100,000 by being the last remaining house guest. Each week, the house guests vote to evict one of their own until two house guests remain on finale night. The winner is decided by the last seven evicted house guests, known as the Big Brother Jury.