When did the Simpson's episode air that debuted the character Morris "Moe" Szyslak?
Moe Szyslak:  He is voiced by Hank Azaria and first appeared in the series premiere episode "Simpsons Roasting on an Open Fire". Simpsons Roasting on an Open Fire:  It is the only full-length episode to air during the 1980s, having originally aired on the Fox network in the United States on December 17, 1989.
i don't know