"You Only Start Preschool Once" is an episode of Special Agent Oso.
Oso is trying to make an eye scanner recognize him by looking directly at it so he get his car into the U.N.I.Q.U.E Special Agent Car Wash when a special alert is called after the eye scanner doesn’t recognize him and sets off a booby trap, causing Oso’s car to roll away. A boy named Sam has just started preschool, but he hasn't made any friends yet. So Oso decides to help Sam make a new friend before his class goes on a nature walk.
- The episode's title is a reference to the James Bond film You Only Live Twice.