David, as a representative of the Bureau of Statistical Research and Analysis, gives his reports of a study on families, and presents a "typical family": a father, a mother, and two adorable kids. The family appears in a box in the corner of the screen and sings a verse about their family. They are soon accompanied (in another box) by a little girl, her mother, and a pet hamster. The girl informs David that a family doesn't necessarily have to have siblings or two parents, and sings an additional verse with her mother on her family structure.
David, trying to press on with his findings, meets a third family, who explains (in song) that a boy and his grandparents can also be a family. Soon afterward, a large family sings about how a family can consist of siblings, parents, uncles, aunts, pets, and plants. During the final chorus, with everyone singing along in their grid, David realizes that he must double check his research.
- The Roosevelt Franklin puppet makes a surprise cameo in the big family.
- Muppet performers include Jim Henson, Frank Oz, Jerry Nelson, Olga Felgemacher, Fran Brill and Marilyn Sokol.