Married at First Sight UK Season 20 (officially referred to as the 2025 series) starts on Sunday, 21st September 2025, at 9 PM on E4. Episodes will also be available to stream on Channel4.com. The series airs from Sunday to Thursday each week, with episode lengths varying from 60 minutes to 110 minutes for the launch episodes. This season introduces 18 new brides and grooms who get married when they meet at the aisle for the first time, with the expert team including Paul C Brunson, Charlene Douglas, and Mel Schilling matching the couples.