Just like the adorable baby girl whose birth set the series in motion, it's been fun to watch how Up All Night has grown and changed over the course of its first year of life. When it premiered in September, it was a comedy about how a free-spirited married couple adjusts to the responsibilities of child-rearing. But last night's season finale perfectly illustrated what the show has morphed into since the pilot: a female-driven workplace sitcom that gets more comic mileage out of the adult relationships at the office rather than the parent/child stuff at home. (That the baby's most significant bit of screentime last night came in the post-credits teaser indicates just how much the show's focus has shifted.)