Married at First Sight (MAFS) is an American reality show that premiered on FYI on July 8, 2014, before moving to Lifetime in 2017 and being acquired by Peacock in January 2025 for its 19th season. Based on a Danish format, the series features relationship experts matching three to five couples who legally marry the moment they meet, then live together for eight weeks before deciding to divorce or stay married. Over its 19 completed seasons, 79 couples have been matched, and while 56% initially chose to stay together on Decision Day, most have since split—leaving only 11 couples married as of December 2025, a success rate of just 13.9% compared to the national average of about 58%. The show is known for its dramatic real-world outcomes, such as season 1's Jamie and Doug, who overcame multiple pregnancy losses to grow into a family of six (including twins born in September 2024), while fellow couple Cortney and Jason divorced in 2019 and both moved on to new marriages and children. Despite its controversial premise, the franchise has expanded with spin-offs like Honeymoon Island and Happily Ever After, cementing its place as a lasting fixture in reality TV.