90 Day Fiancé has been captivating audiences since its premiere in 2014 - and has more success stories than viewers might think. The TLC reality series follows hopeful couples who have applied for or received their K-1 visas and must get married within 90 days in order to stay in the United States. 90 Day Fiancé sparked a popular franchise on the network, expanding its universe with spinoffs like 90 Day Fiancé: Happily Ever After?, 90 Day Fiancé: Before the 90 Days and more.