Sesame Street
Air date November 23, 1972
Season Season 4 (1972-1973)
Sponsors O, S, 10
This episode guide has been compiled from listings in TV Guide.
  • Bob gets a lesson in ecology when he finds that his garbage can be used by other residents of Sesame Street.
  • Cartoon: A girl inflates a balloon in the shape of an S.
  • Cartoon: A green man demonstrates dark and light.

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