5. She's having a baby
A pregnancy is a guaranteed way to shake things up, and it's been used by everyone from "Mad About You" to "Desperate Housewives." But once the dramatic birth episode is over, when faced with the daunting task of realistically depicting new parenthood, many shows choose just to ignore the baby's existence. Here's hoping the impending child of "The Office's" Jim and Pam breaks the mold.