The "social experiment" show Married at First Sight has been a national guilty pleasure since its 2014 debut. As crazy as the premise is (strangers marrying each other on TV), the show has had a 66 percent success rate. However, over the years that percentage has dropped to just 20 percent (today only three couples remain married). But that hasn't stopped couples from lining up to audition for the show anyway.

Not only are participants given rigorous background checks, after marrying a stranger in front of millions, they're then forced to go about their regular lives while being followed by a film crew. The whole thing is no easy feat and it makes us wonder how they still manage to find people willing to subject themselves to such a daunting process. But according to past couples, even ones who've gotten divorced, they have no regrets. Below, nine secrets about the show, revealed.