Kermit the smart person helps Bob remember the word "nose".
Ernie finds an apple on a brick wall, and wants to know who it belongs to. Sherlock Hemlock helps solve the mystery, and realizes that Ernie has a brown paper bag with a hole at the bottom, and that Ernie had an apple in the bag, therefore the apple belongs to Ernie. (First: Episode 0137)
Big Bird wants to learn all about clocks, so Luis shows him the insides of a wind-up alarm clock that he's fixing.