Brown makes his prediction based on his conversations with creator Dan Fogelman. “We would talk about Lost, and he talks about Lost being one of the chief influences on our show with regards to the flashbacks and flash-forwards," says Brown. "I said, ‘Lost is my joint.’ But even I’ll admit, like at a point in time, I was like, ‘Are we going somewhere? What’s the culmination?’ And so, we have an endpoint. We know how our show is going to end. Not exactly sure when it will be, but I don’t think it’ll be beyond seven years.” ALSO: Susan Kelechi Watson says her This Is Us character evolved as the writers learned more about her.