In the hilarious new comedy Up All Night, a young couple (Christina Applegate and Will Arnett) find out just how tough raising a baby can be. But with the help of their highly inappropriate friend (Maya Rudolph), they make it work -- and pick up some valuable lessons along the way.
What are they? Find out as as the stars of the show share their best parenting tips in this sneak peek at the new series, which premieres Sept. 14 on NBC. Watch below!
