Camilla Severi

Big Brother Australia 2006, also known as Big Brother 6, was the sixth season of the Australian reality television series Big Brother Australia, and was aired on Network Ten in Australia. The series began on 22 April 2006 and finished on 31 July 2006; a duration of 101 days. In the auditions, which had been held in November and December 2005, producers asked for contestants who were "smart, strong, and looking for a fight". The Launch was aired on the evening of 23 April 2006 (a 24-hour delay). Fifteen housemates initially entered the house on Day 0, with the addition of three Intruder housemates entering the Big Brother House in Week 4, another three Intruders in Week 9, and two replacement housemates entering in Week 12. On Day 100, Jamie was declared the winner of Big Brother 2006, with Camilla the runner-up. At the time it was the closest winning margin in any Australian series of the show, later beaten by Series 7 in 2007.

Ratings for Big Brother 2006 were up slightly on the previous year. The Daily Show increased its average audience to 1.13 million viewers, up from 1.11 million in 2005. The live Sunday evening Eviction shows averaged an audience of around 1.3 million for the 2006 series. The 2006 Finale attracted 1.9 million viewers with the viewing audience peaking at 2.2 million at 9:39 pm

Big Brother 2006 featured several innovations to the formula.

In previous series of Big Brother Australia, viewers could only vote to evict the nominated housemates they wanted to leave the house. Big Brother 2006 added the save vote. Any viewer may cast as many evict or save votes as they choose. Prior to eviction each housemates' save votes were merged with their evict votes; the housemate with the highest number of evict votes – or lowest number of save votes – remaining after the merge is evicted.

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