• Sherlock Hemlock tries to figure out why there's a terrible mess all over the yard – including horns, paper hats, cake, candles and crumpled-up wrapping paper. He decides that the mess was left over after a Twiddlebug dance.

• Mr. Foot stars on "What's My Part?"

• Jim Nabors sings "The Alphabet Song". (EKA: Episode 0176)

• Sesame Street Animal Films: Lion family. (First: Episode 0018)

• Film: Animal movements (First: Episode 0098)

• Maria (Carla Pinza) sings a song using English and Spanish words.

Notes

• The Sherlock Hemlock sketch was adapted in the 1972 book Sherlock Hemlock and the Great Twiddlebug Mystery.