Big Brother & Celebrity Big Brother UK

Big Brother & Celebrity Big Brother UK is an American reality television program, originally airing in the United States on CBS. It is based on the UK version of the popular game show. It first aired on July 18, 2000. The original host of the show, Davina McCall was replaced in 2011 by Brian Dowling. Dowling was then replaced two years later by current host Emma Willis.

Both the regular version and the celebrity version of Big Brother UK are concerned with a group of contestants - called Houseguests - entering the house and competing for a cash prize at the end. They are completely cut off from the outside world.

Format
Each week, each Houseguest must nominate two people for eviction. These nominations are completely anonymous, and strategy and voting may not be discussed for any reason outside of the confessionals. Each week, the contestants with the most votes to nominate face the public vote, where the public votes to evict one of the nominated parties. Some weeks more than one person may be evicted.

In the end, the final Houseguests face the public vote to determine a winner.