So why are contestants on survival or game shows having better luck?
"The Bachelor, that's not an environment to meet somebody," Probst explained. "It's a fun show to watch. Survivor, for instance, you're living in extreme conditions with somebody. You actually do begin to bond on a real human level. So it doesn't surprise me that you might find yourself connecting with somebody in that way."
Chen agreed, adding that on Big Brother, the conditions are less extreme, but the connection between castmates is very similar.
"You're in this house that is cut off from the outside world so you don't have, like, your mean big sister going 'he's a loser' or what have you," Chen said with a laugh. "You don't have television, you don't have distractions. All you have is conversation 24/7."
"Even if you don't make a love connection," the Big Brother host added, "you are bonded for life with all your former roommates. You're in this rare exclusive group on your own."