Bart: "Yo, Dr. S, have you seen Milhouse today?"
Dr. Spirograph: "No."
Bart: "Okay, thanks."
Dr. Spirograph: "Wait! Did you know that there's a direct correlation between the decline of spirograph and the rise in gang activity? Think about it."
Bart: "I will."
Dr. Spirograph: "No, you won't."
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"Radioactive Man"
Episode no.130
Prod. code 2F17
first aired 9/24/95