Reality TV show Big Brother will return to TV screens later this year after Channel 5 signed a two-year deal with its creator Endemol. The show followed a total of fourteen celebrity contestants, known as housemates, who were isolated from the outside world for an extended period of time in a custom built House. The channel launched on Sky channel 171 and Virgin Media channel 150 on 13 July 2010. Channel 5 is the UK’s third-largest commercial channel, with a diverse schedule spanning documentaries, popular factual series, accessible and engaging history, inclusive entertainment and reality, scripted shows and acclaimed children’s and news content.. Big Brother 2004, also known as Big Brother 5, was the fifth series of the British reality television series Big Brother.The show followed thirteen contestants, known as housemates, who were isolated from the outside world for an extended period of time in a custom built House. In Summer 2015, Channel 5 and Channel 5 HD switched places, with Channel 5 HD now being located in Channel 5's original space of channel 105. Celebrity Big Brother 2007, also known as Celebrity Big Brother 5, was the fifth series of the British reality television series Celebrity Big Brother. Big Brother's Big Mouth did not return following the show's move to Channel 5. Big Brother's Big Mouth, aired following the highlight shows. Channel 5 HD is a high-definition simulcast of Channel 5. The show was initially presented by Russell Brand from 2004 to 2007, but he did not return for subsequent series which featured a different presenter weekly. Channel 5 is set to renew Big Brother and Celebrity Big Brother for "several years" after the success of the show's revival over the past 12 months.