Big Brother is a reality TV show broadcast on Channel 4, and S4C in Wales, in which a number of contestants live in an isolated house trying to avoid being evicted by the public with the aim of winning a large cash prize at the end of the run. It is based on the Big Brother series produced by Endemol. For the first two series (2000-2001), the house was located in Bow, London near to the Three Mills Studios which housed Davina’s interviews and the production crew. After planning permission expired after two main seasons (and the first Celebrity Big Brother), Newham Council ordered the complex to be returned to a natural habitat. Subsequent series have taken place at Elstree Studios, which offers more security than the Bow site (which had a public footpath running alongside the southern border).