Curious George - Season 1 Episode 13 Curious George, Door Monkey

The doorman has to go away for an errand and leaves Hundley in charge. But soon George arrives and puts on the Doorman's uniform. This makes a deliveryman sign off a bunch of packages to him thinking he is the doorman. George opens all of the packages, which contain autographed balls, thinking they are all from him. But when the person who was supposed to receive them sees them, George realizes his mistake. He and Hundley must then work together to re-package them and stack them up.