Animated debut of Peppermint Patty.
First Peanuts special to use muted trombones for the voices of adults. However in this special the trombone is more melodic and does not attempt to mimic the cadences of human speech like in future specials.
Although she is not seen, this is the first TV special to mention Charlie Brown's infatuation with the "Little Red-Haired Girl."
When outside the Principal's office Charlie Brown quotes Psalm 35 and paraphrases Psalm 31 from the King James version of the Bible.
When Charlie Brown gets up the nerve to tell Peppermint Patty about his love for the Little Red-Haired Girl, she responds with a French phrase saying: "Une affaire d'amour, eh?" which translates to: "An affair of love, eh?"