In the Mailtime Segment, Mailbox joins in the rhyming theme by first giving Steve one of his sweaters and then a block of cheddar cheese before finally giving him the letter. This could be a reference to Words, where Mailbox held up words that rhyme with "letter" while telling Steve his poem.
The episode's title shares its name with a category on the game show Wheel of Fortune.
This is the 2nd episode where Snail was pointed out, the 1st being "Blue's ABCs".
In his 3rd appearance in the rhyming storybook, he was shown on a whale (the 3rd clue) on a scale (an inanimate version of the bathroom scale from "Weight and Balance"), both of which rhyme with snail.
Both Snail and the whale interacted with Steve before and after he drew the whale in the Handy Dandy Notebook.
When Steve says “Our first two clues, Rhyme!” His voice is from Early Season 1.