Big Brother 6 was the sixth series of Big Brother in the UK, a reality television show on Channel 4, in which a number of contestants live an isolated existence in a purpose-built house who try to avoid being evicted by public vote, with the aim of winning a large cash prize at the end of the run. Big Brother 6 ran for eleven weeks, at the time the longest the programme had lasted (subsequent series extended the duration to thirteen weeks). The sixth series began on 27 May 2005 and ended on 12 August of the same year.