| Sesame Street | |
| Plot | Oscar's air pollution factory |
| Air date | March 21, 1973 |
| Season | Season 4 (1972-1973) |
| This episode guide has been compiled from listings in Tucson Daily Citizen. ⓘ
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- Oscar the Grouch's business goes up in smoke when Gordon makes him shut down his air pollution factory.
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| Episode 0497 | Episode 0499 |
