15. “Leela’s Homeworld” (Season 4, Episode 2)
The very first episode of “Futurama” teased a major secret involving the parentage of Leela, who was orphaned as a child and has never met another cyclops like her. But the show took four seasons and over 50 episodes to answer that lingering question, which might have been frusturating if the reveal wasn’t so movingly done. After getting named “orphan of the year” by her old orphanage, Leela is left longing for a family, only to discover — via an excursion to the sewers — that her parents have been watching over her her entire life. Although she spent years thinking she was an alien, Leela learns she’s actually a mutant, and her parents, who reside with their kind in the sewers of New New York, purposefully gave her up in the hopes she would live a better life, but still watched her grow up from the shadows. The moment where Leela learns the truth and tearfully reconciles with her parents is beautifully and movingly done, ranking up their with the best of “Futurama’s” more serious moments.