The Biggest Loser is an Australian reality television show, based on the original American version of the same name. It is produced by Shine Australia and screened on Network Ten. Since 2015, the show has been hosted by former contestant Fiona Falkiner, It was formerly hosted by Ajay Rochester from 2006 to 2009 & former Olympian Hayley Lewis from 2010 to 2014. The show debuted on 13 February 2006, followed by a second season on 4 February 2007 which introduced Michelle Bridges, Shannan Ponton and Steve Willis. The third season began airing on 3 February 2008. A fourth season, which features couples competing as teams, started airing on 1 February 2009. A fifth season, which aired on 31 January 2010, featuring former Olympic swimmer Hayley Lewis as the new host, and in 2011 the show introduced the new trainer Tiffiny Hall. In its eleventh season, the show introduced new trainer Libby Babet. The show did not return in 2018 due to low ratings.