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
For the "Big Brother 2007" season "Friday Night Live" remained largely unchanged. For this season the prize boxes generally contained an overseas holiday, a large item such as expensive watches or a scooter, and a booby prize. But a twist in the power to change the nominations lineup made this a more valuable than ever prize for the winner of "Friday Night Live" in "Big Brother 2007" as they were able to remove themselves altogether (if nominated) or another housemate from the nominees for that week, and replace them with another housemate, rather than in the last two series where the winner had the power to change nominations by deducting 3 points from a nominee. The "Friday Night Live" format was reused in the Network Ten spinoff series "Friday Night Games" which began in February 2006 and ended before "Big Brother" resumed for 2006. This weekly program is also filmed at Dreamworld, and features two teams of celebrities (who are joined by members of the public) to compete in a series of games. The program was again hosted by Goldman, Amer, and Fitzgerald.