Question: In one of the episodes with clip shows, Troy McClure said that there would be a little green alien that only Homer could see and hear. I know this was a joke, but has the alien ever appeared in any other episodes?
Sereenie
12th Aug 2007
The Simpsons (1989)
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Answer: No, this refers to "The Flintstones," in which Fred occasionally saw such an alien.
Sereenie