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.
Big Brother (Australian season 6)
This season of Big Brother Australia proved to be highly controversial. "Big Brother – Adults Only" ended its run early after politicians warned Network Ten that its screening of the show could harm its push for media reforms. An alleged sexual assault during which John (real name Michael Bric) held down Camilla Severi on her bed while Ashley (Michael Cox) pushed his crotch into her face in the house on 1 July 2006 resulted in the ejection of the pair from the show. The incident sparked calls for the series to be investigated for possible breaches of broadcasting laws, and calls for the cancellation of the series by several commentators and politicians, including then Australian Prime Minister John Howard and opposition leader Kim Beazley. The incident and in particular the Prime Minister's comments, were reported internationally, running on CNN and the BBC and in various other international publications.