Home Away from Homer

"Home Away from Homer" is the twenty-first episode of "The Simpsons"' sixteenth season. It originally aired on the Fox network in the United States on May 15, 2005.
Plot.
Lisa calls in to an unpopular public radio station and wins tickets for four to an Albanian movie called "Kosovo Autumn". Homer leaves Maggie with Ned Flanders, who agrees to babysit free of charge, while the rest of the family watches the movie. When Marge picks up Maggie and hastily offers to pay Ned admits to needing extra money as a giant retail store called Left-Mart is threatening his business. Marge suggests he rent out one of his rooms to someone. He agrees, giving the room to Katja and Vicky, two female community college students.
Taking advantage of his trusting nature, the two use their room as a staging area for a softcore pornographic website, sexyslumberparty.com. Bart and Milhouse come across a banner ad for the site and share their discovery with Homer, who proceeds to spread the news around town. Marge soon discovers Homer and Bart viewing the website and forces Homer to tell Ned everything. Ned angrily forces the girls to leave, but realizes that everyone has arrived to cheer for them. Horrified at both the town's mockery and Homer's betrayal, Ned leaves town, moving to "Humbleton, Pennsylvania", home of the porcelain "Humble figurines", which he collects. Angered by Homer's actions, Marge and Lisa tell him to be on his best behavior for their new neighbor, "Coach" Clay Roberts, who becomes a cynical bully towards Homer and litters the Simpsons' yard with Ned's fallen trees, cutting their cable, and siphoning gas from Homer's car.
Meanwhile, Ned finds the friendly pseudo-Germanic town of Humbleton to be everything he ever dreamed. However, when applying for a job at the Humbleton Figurine Workshop, the manager requests him to shave his moustache, declaring it "hippie-ish" and distracting. Ned briefly considers it, but soon decides it is more important than the opinions of the townspeople, who shun him.
Homer drives to Humbleton and pleads with Ned to return, who, upon seeing the judgmental faces of the Humbleton residents glaring at him, agrees. Clay refuses to leave the house, despite Ned pointing out that his $200,000 check bounced, thus he legally still owns the property, but is persuaded once Ned and Homer overpower him by sheer force. A few hours later, Homer obtains a pipe organ, which Ned believes is from the local church, and places it in Ned's backyard for a welcome-home party, which several Springfield residents attend. Ned is happy at the party, which soon irritates Homer.