Married at First Sight is an Australian reality television series, based on the Danish program of the same name, on the Nine Network. The show features couples, matched by three relationship experts, who agree to "marry" each other when they first meet. The first season premiered on 18 May 2015 on the Nine Network. A second season began on 4 April 2016 with the third season premiering later in the same year on 29 August 2016 A fourth season premiered on Monday 30 January 2017. The fifth season premiered on Monday 29 January 2018. The sixth season premiered on Monday 28 January 2019