"Fear of Flying" is the eleventh episode of the sixth season of the American animated television series The Simpsons. It was first broadcast on the Fox network in the United States on December 18, 1994. In the episode, the family attempts to go on a vacation but soon discovers that Marge is afraid of flying.
Grampa Simpson
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Abraham Jebediah "Abe" Simpson II, better known as Grampa Simpson, is a recurring character in the animated television series The Simpsons. He made his first appearance in the episode entitled "Grandpa and the Kids", a one-minute Simpsons short on The Tracey Ullman Show, before the debut of the television show in 1989.
Dan Castellaneta voices Grampa and several other recurring characters
Writer David Mirkin thinks that what makes Grampa funny is that the "boring" and "tedious" things he says are "actually funny" in the context of the boredom and the tedium.