Lisa the Simpson
Lisa struggles with solving a simple puzzle and fears that the "Simpson gene” is suddenly wiping out her intelligence. Homer stages a family reunion in hopes of introducing Lisa to some Simpsons she can respect.
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More from this season
S9 E1
The City of New York vs. Homer Simpson
Designated driver Barney absconds to Manhattan in Homer's car and leaves it there. But when the family journeys to the Big Apple to retrieve their property, Homer discovers his car has been booted.
S9 E2
The Principal and the Pauper
Unmasked as an impostor, Principal Skinner flees to Capital City to reclaim his former life as a shiftless good-for-nothing. The people of Springfield gain a newfound appreciation for him and form a plan to bring him back.
S9 E3
Lisa's Sax
After Lisa’s saxophone is destroyed, the Simpsons reminisce about how she originally got the instrument. On the hottest day of the year, Homer must decide whether to buy an air conditioner or replace Lisa’s sax.
S9 E4
Treehouse of Horror VIII
In “The Homega Man,” Homer faces a post-apocalyptic Springfield. Next, Bart attempts to become Superfly in "Fly vs. Fly." In “Easy-Bake Coven,” amidst a witch hunt in 1649, Marge and her sisters invent trick-or-treating.