Ashley's Big Brother 8

Big Brother 8, also known as Ashley's Big Brother 8 and Big Brother 8: All-Stars, is the eighth season of Ashley's Big Brother, which premiered exactly a year after the series began on August 23, 2014, and ended over a month later on September 27. It is currently the longest running season to date, airing for a total of 35 days; it also marked the first time that the show has breached its usual ten-week run, and the first time there was an uneven ratio of female and male housemates on launch night. Big Brother 5 runner-up Chris G. emerged as the winner on finale night, surpassing Big Brother 3 winner Janelle P.

Sixteen housemates entered the house on launch night. Nine were chosen by the producers, whilst the remaining seven were voted in by the viewers. Following launch night, the public were able to choose one of three wildcard housemates to enter after the first eviction. Natasha from Big Brother 2 received the most votes, and entered the house on Day 4.

Production
Big Brother 8 featured many fan favourite twists and competitions to celebrate the All-Star season. The first week featured the "Three House Captains" twist from Big Brother 3. Week 4 saw the return of Pass the Bomb from Big Brother 6, in which the housemate still holding the bomb at the end of the game would automatically face eviction. Week 9 featured face-to-face nominations, a recurring twist that previously appeared in Big Brother 2, Big Brother 4 and Big Brother 6. On Day 31, a double eviction took place, a twist that has only happened once before during the fourth season. following this, America became the final House Captain of the season in a reappearance of the "American Rules" twist which was also from Big Brother 4.

As well as featuring past twists, new format changes were introduced to the game, the first of which being the use of a "vote to save" rather than a vote to evict, where the housemate who receives the least votes is evicted. This season was also the first to feature the "Fast Forward" twist, where a whole week of Big Brother took place in 24 hours. This would later become a recurring twist in the Big Brother game alongside face-to-face nominations and reverse week. Big Brother 8 was also the first to feature a two-part finale, where the housemate with the least votes to win would be evicted prematurely, with voting then taking place between the final two housemates.

Format
Each week lasts four days and comprises of four different events: the House Captain competition, nominations, the Power of Veto competition and an eviction of a housemate at the end of the week. The House Captain competition takes place on the second day of the week and decides which housemate would be in power for that week. This housemate is given immediate immunity from eviction for the week, and holds the responsibility of nominating one other housemate for eviction. The housemates begin nominating soon after the competition has finished; they are given 22 hours to visit the Diary Room and nominate two other housemates for eviction, and the two or more housemates who receive the most nominations face eviction alongside the Captain's nomination. Following the nominations reveal, the housemates compete in the Power of Veto competition, which allows the winning housemate to save one of the nominated housemates for eviction and replace them with someone of their own choice, or choose not to use it at all. Following the announcement of the final nominees, a poll opens in which the public decide which housemate should be evicted. The eviction take place on the final day of the week, and the cycle continues.