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Every Man's Dream Homer is diagnosed with narcolepsy, but instead of returning home with his prescription medication, he returns home drunk. He and Marge visit a marriage counselor and have a trial separation, during which Homer begins dating a 20-something.
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Cue Detective Scotty Boom, a Chew Network super-chef, challenges Homer to a smoke-off. But when someone steals Homer’s secret weapon – a smoker he bought off a mysterious man at a BBQ shack – Lisa and Bart are on the case.
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Puffless Upon learning that their father really died of lung cancer, Selma and Patty agree to quit smoking. When Selma relapses, an angry Patty moves in with Marge and Homer.
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Halloween of Horror When Lisa becomes scared at the Krustyland Halloween Horror Night, Homer is forced to take down his Everscream Terrors decorations. Halloween pop-up employees seek vengeance on Homer for causing them to lose their jobs, and rob his house while Homer and Lisa hide out in the attic. Homer and Lisa light up their stored holiday decorations to attract attention and stand up to the intruders.
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Treehouse of Horror XXVI In the annual fright fest Halloween episode, Sideshow Bob finally kills Bart, only to reanimate him; Homer wakes up with short-term memory loss; and Lisa, Bart, and Milhouse get super powers from radiation.
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Friend with Benefit Lisa makes a new pal at school named Harper, whose internet billionaire father becomes buddies with a different Simpson: Homer. Soon, though, Lisa becomes worried that Harper is a little too entitled.
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Lisa with an 'S' When Homer loses $5,000 at a poker game with Broadway legend Laney Fontaine, the only way he is able to settle the bet is if he loans Lisa to Laney for a month. Then, Laney turns Lisa into a show biz kid and Marge and Homer fear they made a mistake letting her go. So they head to New York to get her back.
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Paths of Glory Lisa sets out to restore the tarnished reputation of Springfield’s first female inventor. To find her invention, she scours an abandoned asylum and a restaurant that caters to men. Bart joins Lisa at the asylum, stealing one of the homicidal patient’s notebooks, and bragging to the boys at school that he wrote the entries himself. This revelation causes Homer and Marge to believe he is a sociopath, which Bart decides to use to his advantage until things go too far.
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Barthood Bart’s coming of age story a la “Boyhood” chronicles his life from six years old to his time as an accomplished young man. Along the way, his tense relationship with Homer, an overly uncaring version of himself, and Lisa, who overshadows him in every way possible, shape Bart more than he realizes.
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The Girl Code After a photo Marge posts on social media gets Homer fired, he returns to the best job he ever had, a dishwasher at a Greek restaurant. This same post inspires Lisa to code an app that predicts the real-life consequences of anything you post online, only to create sentient artificial intelligence.
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Teenage Mutant Milk-Caused Hurdles There is a new teacher at Springfield Elementary, and a captivated Bart tries everything to win her over. Meanwhile, Homer decides to buy a new brand of “milk,” which causes early puberty, both for Bart (augmenting his wooing powers) and Lisa (whose small bout with acne opens her up to the world of makeup and popularity).
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Much Apu About Something Sanjay passes his stake in the Kwik-E-Mart to his millennial son, Jay, who turns it into a hip, health food market against Apu’s insistence on tradition. Bart, whom Homer had convinced to give up pranking, is called upon to return to his trickster life and take down the new store.
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Love Is in the N2-O2-Ar-CO2-Ne-He-CH4 Lonely Professor Frink uses science to turn himself into a man whom women find attractive. Then, overwhelmed by the attention, he invents an algorithm to perfectly pair the lonely men and women of Springfield, realizing that scientific exploration is his true love. Meanwhile, Marge, Bart, and Lisa visit Grampa for Valentine's Day and try to rescue the old folks from a drug-induced hallucination that allows them to relive their happiest memories.
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Gal of Constant Sorrow After Bart accidentally sends a sweet homeless woman's cart into the river, he allows her to live in his closet for a small fee. When Lisa discovers that the woman is an incredible folk singer, she offers her own closet and plans a concert, only to be disappointed by Hettie's surprising substance abuse and violent nature. Meanwhile Homer tries to prove he's handy, but accidentally traps the cat in the walls of the house.
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Lisa the Veterinarian After performing CPR on a tased raccoon, Lisa discovers her calling to be veterinarian and becomes an intern at the local office, but learns a tough lesson when her neglected class hamster dies. Meanwhile, Marge moonlights as a crime scene cleaner for a little extra money, and the trauma of the gory scenes make her increasingly dead inside.
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The Marge-ian Chronicles Not feeling unique, Lisa signs up for the Mars One Space Colony – to Marge’s dismay. Then, Marge hires Bart to go through the tryout process with Lisa to make her want to quit.
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The Burns Cage After Smithers is crushed by Mr. Burns' lack of affection towards him, other characters attempt to find a boyfriend for him. Meanwhile, Milhouse competes against a new boy for the lead role in a school production of Casablanca, so he can act alongside his own unrequited love, Lisa.
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How Lisa Got Her Marge Back After getting into an argument, Marge takes Lisa on a touristy trip to Capital City, where, after attending a musical, they meet the show’s star who reminds Lisa how lucky she is to have such a great mom. Meanwhile, Bart is frustrated that everyone expects his pranks, so he teams up with Maggie to trick people.
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Fland Canyon Homer recalls a tense family vacation to the Grand Canyon with the Flanders family. At first, the Flanders’ perfection puts the families at odds, but when they get stranded and Ned and Bart go for help, the families finally bond.
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To Courier with Love "The Simpsons are going to..." Paris (well, Homer and Marge are), but in order to be able to afford the trip, Homer has to smuggle an exotic snake into France so it can be made into a gourmet meal.
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Simprovised After butchering a speech in front of all of his friends at work, Homer turns to improv comedy to gain back his confidence in his public speaking skills. Meanwhile, Marge decides to rebuild Bart’s lackluster treehouse, but tensions rise when Bart questions her building skills. Also, in the episode’s last three minutes, Homer appears LIVE for the first time on television (both for East and West Coast broadcasts) to answer fan questions.
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Orange is the New Yellow Marge goes to prison for letting Bart play in a park unsupervised.