Watch TV Series Married At First Sight UK Online Free. Married at First Sight is a ground-breaking series which asks if science can help us fall in love. Chosen from an initial pool of over 1500 applicants, individuals seeking long-term love are carefully assessed by a panel of experts in the fields of psychology, social and evolutionary anthropology, and theology. Once matched, three highly compatible couples prepare to enter into a legally-binding marriage with a complete stranger – meeting for the very first time at their own wedding where they’ll declare ‘I do’. But what makes the perfect match? And will everyone make it down the aisle?