Big Brother (Australian season 7)
Big Brother Australia 2007, also known as Big Brother 7, was the seventh season of the Australian reality television series "Big Brother". Episodes were broadcast on Network Ten in Australia, and the first episode aired on 22 April 2007. 
Despite a drop in ratings compared to previous series, and a number of controversies, the then "Big Brother" executive producer Kris Noble considers the year's series a success. At the end of this season's finale broadcast 30 July 2007, it was announced by host Gretel Killeen that "Big Brother" would be returning for an eighth season in 2008. In the finale Aleisha Cowcher was announced winner of "Big Brother Australia 2007". She won by the closest winning margin ever in the Australian series. The news the following day reported a margin of 51% versus 49% – a difference of 65 votes. This was the last season hosted by Gretel Killeen.
List of Big Brother (Australian TV series) shows
An innovation introduced in "Big Brother 2005" was the "Three Point Twist" whereby the winner of "Friday Night Live" must subtract three nomination points from one of the nominated housemates. If they themselves are included in the original lineup of potential evictees they may opt to subtract the points from themselves. This occurs after the initial nominations have been announced to all housemates, and while housemates may not discuss which housemate they remove points from, where the line-up changes it is often clear which housemate has had their nomination points deducted. The three housemates with the highest number of nomination points after the "Three Point Twist" will face eviction. Again in the case of a third place tie, more than three housemates may be up for eviction. The "Three Point Twist" got its name as part of a sponsorship deal with KFC. "Big Brother 2007" introduced a new version of the "nominations twist" where the winner of Friday Night Games must now entirely remove a housemate who is nominated for eviction, and then nominate a new housemate to be up for eviction.