Celebrity Big Brother(TV show/series, 2001-)

Celebrity Big Brother 12 was the twelfth series of the British reality television series Celebrity Big Brother. It launched on 22 August 2013 three days after the fourteenth regular series final in two parts. The series ended after 23 days on 13 September 2013, with Charlotte Crosby voted the winner by the public. It continued to air on Channel 5 as part of a two-year contract with Endemol, which secured the show until 2014. It was the fifth celebrity series to air on Channel 5 and the eighth series of Big Brother to air on the broadcaster overall since they acquired the show. This was the first celebrity edition to be hosted by Emma Willis. Willis continued to host Bit on the Side alongside Rylan Clark and AJ Odudu. This series also saw the return of viewers voting to 'Save', a format that was not used in the prior fourteenth regular series.

Celebrity Big Brother 11 was the eleventh series of the British reality television series Celebrity Big Brother. It launched on 3 January 2013, and aired on Channel 5 and 5* for 23 days concluding on 25 January 2013. The series is part of a new two-year contract signed by Channel 5 with Endemol to air the show until 2014. It is the fourth celebrity series to air on Channel 5 and the sixth series of Big Brother to air on the broadcaster since they acquired the show. This series is the highest rated series since moving to Channel 5 alongside Celebrity Big Brother 8 with an average of 2.8 million. This was the last series of Big Brother to be presented by Brian Dowling.

Celebrity Big Brother 10 was the tenth series of the British reality television series Celebrity Big Brother. It launched on 15 August 2012, two days after the final of Big Brother 13, and aired on Channel 5 and 5* for 24 days until 7 September 2012, making it the longest Channel 5 series of Celebrity Big Brother to date. It was the third celebrity series to air on Channel 5 as part of a contract extension of the current two-year contract with Endemol, and the fifth series of Big Brother to air on Channel 5 since they acquired the show. The series was sponsored by hair product brand Schwarzkopf Live Color XXL. It was won by comedian Julian Clary, with television presenter Coleen Nolan as runner-up.

Celebrity Big Brother 2012, also known as Celebrity Big Brother 9, was the ninth series of the British reality television series Celebrity Big Brother. It began on 5 January 2012 and ended on 27 January 2012. It was the second Celebrity series to air on Channel 5 as part of the channel's then two-year contract with the show and the ninth series of the show to air overall. The series was sponsored by Plusnet. This was the first of two series of Celebrity Big Brother to air in 2012. The series was won by actress and television presenter Denise Welch.

Celebrity Big Brother 2011, also known as Celebrity Big Brother 8, was the eighth series of the British reality television series Celebrity Big Brother and the first series of Big Brother UK to air on Channel 5. It launched on 18 August 2011 at 9 pm on Channel 5. It ran for 22 days concluding on 8 September 2011, making it the shortest Channel 5 series of Celebrity Big Brother to date. It was followed by the twelfth regular series of Big Brother, which launched the following night. In keeping with the celebrity theme, the first edition of OK! TV When Bruv Takes Over aired on 17 August, the eve of the launch night. Following intense press speculation, the exact line-up of celebrity house guests remained a mystery until the launch night. For the first time in the UK, the celebrity-based version of the show was staged prior to the main show. Previously, the celebrity version took place in January. Like Celebrity Big Brother 7, it was sponsored by Freederm. The series was won by Irish Traveller and reality show star, Paddy Doherty with Kerry Katona as runner-up.

Celebrity Big Brother 2010, also known as Celebrity Big Brother 7, was the seventh series of the British reality television series Celebrity Big Brother and the final series to air on Channel 4 and E4. It began on Sunday 3 January 2010 and aired for 27 days until the final on 29 January 2010, the longest ever celebrity series in the UK. The series launched with 6.7 million viewers and went on to become the most watched series of Big Brother UK since 2007, averaging 3.7 million viewers per night Davina McCall returned as main presenter, also hosting Big Brother's Big Mouth. George Lamb also returned to present Big Brother's Little Brother. The show was sponsored by the bed retailer Dreams, who also sponsored the previous celebrity series. Alex Reid won the show with 65.9% of the final vote, hence becoming the final Channel 4 Celebrity Big Brother winner. Alex's percentage equates to 36.88% in real terms, beating the series runner-up by a margin of over 17%.

Celebrity Big Brother 2009, also known as Celebrity Big Brother 6, was the sixth series of Celebrity Big Brother. It was broadcast on Channel 4, launching on 2 January 2009 and running for 22 days until 23 January 2009. The launch show was watched by approximately 6.4 million people. Davina McCall returned as main presenter, with George Lamb as host of Big Brother's Little Brother, and Jack Whitehall as host of Big Brother's Big Mouth. The winner of this series was Ulrika Jonsson, with Terry Christian second. This was the first series of Celebrity Big Brother to air since the racism controversy of 2007, during series 5, although Channel 4's sister channel E4 aired a similar spin-off in 2008, entitled Big Brother: Celebrity Hijack. This series was the least watched Celebrity Big Brother series, averaging 3.3 million viewers; at the time of transmission, it was also the least watched series of any Big Brother in the UK until the tenth non-celebrity series pulled in 2.5 million. Despite the low viewership, the launch show was the most watched programme of 2009 on Channel 4, raking in 6 million viewers. Ulrika and Coolio took part in Ultimate Big Brother in 2010. Coolio was removed within the first few days and Ulrika finished seventh on the final night.

Celebrity Big Brother 2007, also known as Celebrity Big Brother 5, was the highly controversial fifth series of the British reality television series Celebrity Big Brother. The series was broadcast on Channel 4 in the UK, from 3 January 2007 and ran for 26 days with the finale on 29 January 2007. Davina McCall returned as host. It was the first Celebrity Big Brother series to be shown in the 16:9 widescreen format. The series saw the return of Jade Goody, who became a celebrity after appearing on the third regular series of Big Brother in 2002, arriving with her boyfriend and mother, it was the first series where family members could enter the house together. On 16 January 2007, this series had attracted the largest ever number of public complaints to the UK broadcasting watchdog Ofcom about a Big Brother series. The complaints received detailed concerns that housemate Shilpa Shetty had been subjected to bullying. Goody, Danielle Lloyd and Jo O'Meara's behaviour towards Shetty sparked widespread anger and demonstrations in India, where the alleged racism was reported on the news, and led Big Brother's main sponsor Carphone Warehouse to suspend its sponsorship of the show. As of 19 January 2007, a Channel 4 spokesman agreed that participants should be made aware of the controversy, probably explaining the recent explanations and apologies tendered by the housemates and their complete lack of surprise after learning about the latest eviction.

Celebrity Big Brother 2006, also known as Celebrity Big Brother 4, was the fourth series of the British reality television series Celebrity Big Brother. It was hosted by Davina McCall and was broadcast on Channel 4 from 5 January 2006 until 27 January 2006, running for three weeks. Eleven housemates entered the house on Launch Night, only ten of them were being paid for their appearance, Chantelle Houghton who was the first to enter the house had actually auditioned for the sixth non-celebrity series the previous summer, but was instead selected to enter the celebrity series. Her secret mission was to pretend she was a member of girlband Kandy Floss, she convinced the others that she was a celebrity, and was ultimately allowed to stay, failure would have resulted in her departure from the house. This series was notable for a number of controversies, such as the participation of Respect MP George Galloway. 1980's pop star Pete Burns brought a coat made from gorilla fur among his possessions, the coat was removed from the house on Day 16, following complaints from viewers and housemates, it was later discovered the coat was made from colobus monkey. No charges were brought forward as it was believed the coat was imported before colobus fur became illegal in 1975.

Celebrity Big Brother 2005, also known as Celebrity Big Brother 3, was the third series of the British reality television series Celebrity Big Brother. It launched on 6 January 2005 and ended on 23 January 2005, airing on Channel 4. Davina McCall returned as host of the main show. Celebrity Big Brother 3 continued with Big Brother 5's 'evil' theme. It was won by dancer Mark "Bez" Berry. This was the first series of Celebrity Big Brother to air since 2002, as Teen Big Brother: The Experiment and Big Brother Panto were broadcast in its place in 2003 and 2004, respectively. This was the first series where the celebrities were being paid for there appearance rather than doing it for charity like the previous two series, however a percentage of phone vote funds went towards helping victims of the 2004 Indian Ocean earthquake and tsunami. John McCririck, who was the second housemate to be evicted, represented this series in Ultimate Big Brother in 2010, where he was the first to be evicted.

Celebrity Big Brother 2002, also known as Celebrity Big Brother 2, was the second series of the British reality television series Celebrity Big Brother. It was broadcast on Channel 4 in the UK, launching on 20 November 2002, and ending on 29 November 2002, lasting ten days. Proceeds from viewer voting went to four different charities: Centrepoint, National Missing Persons Helpline, Rethink and Samaritans. The series was sponsored by phone company O2. Les Dennis is commonly remembered for his depression during the series following his split from wife Amanda Holden.

Celebrity Big Brother 2001, also known as Celebrity Big Brother 1, was the first series of Celebrity Big Brother. In aid of the British charity Comic Relief, six celebrities entered the Big Brother 1 house for eight days. The series premiered on March 9, 2001 and concluded on March 16, 2001. While Channel 4 aired daily highlights shows, BBC One also aired 10-minute updates. Along with these updates, they also aired the finale, which was part of the Red Nose Day telethon. Celebrity Big Brother 1 was the first Big Brother series to feature a live launch, something which is now common for every season of the series. Initially meant to be a one-time series, the success of Celebrity Big Brother 1 later influenced the decision to make Celebrity Big Brother an annual occurrence, much like the main series. To date, twelve seasons have aired. The premise of the series remained similar to that of the main series. The series revolves around six celebrities living in a house together with no communication with the outside world. They are filmed constantly during their time in the house, and can have no communication with those filming them. Every other day in the game, each contestant, referred to as "housemates", choose two people to be up for nomination. The two or more people with the most votes will be nominated to leave the house. The viewers then decide which of the nominees should leave, with the selected person leaving during a live show. This process continued until only three housemates remained, in which the viewers would decide which of the housemates would win the series. Whereas the winner of the main series receives a cash prize, the celebrity edition of the series sees them competing for charity. A housemate can be ejected from the show for breaking rules, such as discussing nominations when not permitted.