No particular order. Feel free to add your own
  1. "The Itchy and Scratchy and Poochie Show"
    Perhaps the greatest half hour about the creation of television in existence. Meta but never cloying, this episode is both a "thank you" and a "fuck you" to it's audience. I reference it DAILY in the Writers room of our show. The greatest advice for ANY type of storytelling: "When are they getting to the fireworks factory?"
  2. "Mom and Pop Art"
    People tag on the show for going off the rails after the golden years, but this episode is a fantastic example of running wild with a premise. The flooded Springfield at the end of the episode is a sight to behold, and I've never laughed so hard at a joke about Jasper Johns. Everything IS coming up Milhouse
  3. "Brick Like Me"
    The Lego episode. I may have enjoyed it more than the Lego movie, and I LOVED the Lego movie. Touching, smart, and loving
  4. "Itchy and Scratchy Land"
    An episode length Jurassic Park/Disney parody. A half hour action movie that's full of wit. I now know what I want my final words to be: "When you get to hell, tell 'em Itchy sent ya"
  5. "Marge vs the Monorail"
    This episode made me fall in love with musical theater AND monorails
  6. "Bart After Dark"
    Ah, the Maison Derrière. I understood so few of the jokes when I first watched it at 8 years old, but loved it all the same
  7. "Mother Simpson"
    I didn't appreciate this episode when I was a kid, but after losing my own mother, I completely identify with Homer's loss
  8. "Homer's Phobia"
    I didn't understand what gay culture was before I watched this. Hell, I didn't know what "gay" MEANT (I was 8. Cut me some slack). Way ahead of it's time, this episode is just as much about the disconnect between fathers and sons as it is about accepting others. And that steel mill scene. Fantastic
  9. "Sideshow Bob Roberts"
    I'm a sucker for the Sideshow Bob episodes, but this one is by far the standout. The Simpsons understand American politics better than any other show (save perhaps "Parks and Recreation") in existence
  10. "Treehouse of Horror VII"
    Specifically, "Citizen Kang." American politics summed up in one, perfect sentence: "Abortions for some, miniature American flags for others!"
  11. "You Only Move Twice"
    In which Homer takes a job working for Hank Scorpio. "Homer what's your least favorite country, Italy or France?"
    Suggested by @stang
  12. "El Viaje Misterioso de Nuestro Jomer"
    Dog says "Hi, Homer. Find your soulmate!" To which Homer replies, "there's no such thing as a talking dog." The dog barks and Homer nods, "Damn straight!"
    Suggested by @maddiecalls
  13. "Behind the Laughter"
    It made fun of reality TV before it was even a thing. It's every biopic, condensed into its purest form. My old boss was the creator of "Behind the Music," and loved this episode more than anything else. I have to agree with him
  14. "Das Bus"
    A fantastic Lord of the Flies parody AND a half hour joke about the UN? Count me in
  15. "Guess Who's Coming to Criticize Dinner"
    A great addition to the "Homer gets a job as a-" canon. Homer and Lisa is one of my favorite character pairings