Эта серия находится на девятом месте в списке 10-ти серий Южного Парка, изменивших мир.
И хотя кажется, что весь сериал вырезан из бумаги по технологии стоп-моушен, это — единственный эпизод, который был анимирован с помощью этих приёмов. Все остальные эпизоды (включая дополнительные сцены для этого, которые не были показаны в пилоте), начиная с "Набор веса 4000" (за исключением короткой сцены в серии "Слон занимается любовью со свиньёй") сделаны с помощью компьютерной анимации.
Despite this, however, the technique would be used again in the Season Six-Eleven intros, where animation director Eric Stough is seen designing the boys with construction paper over the background of episode clips played in the intro.
This is the only episode in the series to not be animated using computers.
In a pan shot of the cafeteria, a voice identical to Kyle's cousin, Kyle Schwartz can be heard, talking about his bad gas, coming from a Jewish kid with stringy black hair, which is not what Kyle Schwartz looks like. Cousin Kyle would not be introduced until four seasons later.
This is the first time Cartman says his catchphrase "Screw you guys, I'm going home."
Two Hasidic boys can be seen in the cafeteria, one of which resembles Jason, who was formally introduced in season 6.
Bebe Stevens and Red are shown on the bus, wearing different outfits than what they would wear for the rest of the series.
Stan is the first character to ever fart in the show, he does so on the bus and Kyle replies with "You farted!", in which Cartman replies with "Somebody's baking brownies!".
According to Mr. Garrison, Christopher Columbus discovered America and was "good friends" with the Indians, that he had helped them win a war against Frederick Douglass, then apparently freed the Hebrews from Napoleon and discovered France, all this before the year 1492.
On the chalkboard, the following sentences are present: "Johnny threw the red ball", "I ate too much cous-cous", "Don't make fun of my grandpa", and "I'm not positive, but I think Cathy Lee Gifford is much older than she claims to be".
In the original pilot of this episode, Chef allows the boys to sneak out by giving them super hot tamales. Stan, Kyle and Kenny give their tamales to Cartman whom the Fifth Graders bully into eating all four. This gives him the power to fart fire as opposed to the anal probe doing that in the aired episode.
In the original pilot, Wendy Testaburger and Pip Pirrup are nowhere to be found in the classroom, another red-haired girl and a blonde girl filling their respective seats. In the aired version, the two girls remain in the classroom until Cartman farts fire, and are replaced by Wendy and Pip after that.
In the original pilot, Pip is flung off a slide, where he hits his head on a pole, and Kenny laughs the same way he laughed when he told Stan something he could do on his date. When that scene happens when he tells Stan, he laughs differently.
The little hearts that dance around Stan's head originally just rose up and started hovering, however in the aired version, they were just there already, followed by Stan's humongous smile.
The original pilot was 2 minutes longer than the released pilot.
Kenny appears alive at the end of the episode.
All the recurring female characters are voiced by Kari Turner.
In the classroom scene, Kyle says "Fuck Mr. Hat" and Mr. Garrison replies by saying "No no no no, fuck you" which shocks the whole class.
Several scenes were added in that were not in the pilot episode. These scenes were animated like the rest of the episodes from Season 1.
When Officer Barbrady investigates the mutilated cattle, the farmer mentions seeing black CIA and army helicopters in the area. Black or unmarked military helicopters are common trademarks of UFO and alien abduction lore, that suggest that the UFO phenomenon is being covered up by the government. This is also where stories of "Men in Black" come from.
When Stan sees Wendy in the cafeteria, his smile is similar to Charlie Brown's smile when he sees the Little Red Haired Girl in Peanuts.
Cartman says that the crop circle looks like Tom Selleck, the actor best known for playing the character Thomas Magnum in the show Magnum P.I.
When seeing Cartman farting fire, Wendy says that he's "just like Rudolph!", referring to Rudolph the Red Nosed Reindeer the popular Christmas character that had a nose that would shine red light.
When Chef is calling out to the aliens to visit him, he asks them to hurry up because the TV show "Sanford and Son" is about to come on. This show was produced by Norman Lear who went on to be a future staff writer for South Park.
To goad Ike into jumping out of the alien's UFO, Kyle tells him to do an impersonation of David Caruso's career. At the time this episode was made, David Caruso had just recently ended an successful stint on the TV series "NYPD Blue".
At the end of the episode, Cartman claims that actor Scott Baio, who got his claim to fame playing Charles on the TV series Charles in Charge, was aboard the UFO and gave him pink eye.
The quote "Cows on a people train" is from an obscure Dr. Seuss book entitled "In A People House," which he wrote under the pseudonym "Theo LeSeig"
The music that plays during the cafeteria scene where Stan sees Wendy is from "Romeo and Juliet" by Pyotr Tchaikovsky, an extremely popular romantic piece of classical music.
Kyle tells Cartman not to call Ike a "dildo" but doesn't know what it is.
When Cartman finishes talking about his dream in the beginning, Chef drives up and you can see his hat sticking out the top of the car.
This is intentional, as it can be seen in the opening intro as well.
When the bus pulls up, the braking sound plays earlier before actually stopping.
When Cartman is tied up at the tree, you see Cartman "far away" three times. The first and second time, Cartman says "Really? Uh... I don't think I have to fart anymore tonight" And "I don't wanna", and in the background, it is seen small stars, but in the third, when he says "Ok... that does it", you see a big star between the small.
When Stan asks, "Cartman, are those the same visitors you saw?" Kenny blinks twice and both times his closed eyes can be seen popping out of his hood.
The Visitors' UFO blasts Kenny after Kyle throws a rock at it, and Kenny is flung into the road. He survives, but a herd of cows run him over. He survives that, but Officer Barbrady runs him over with his police car and kills him. The boys later mess with Kenny's bloodied corpse, with Stan tapping it with a stick while Kyle removes his head, trying to convince Cartman that he's dead. Rats then come and start eating Kenny. In the unaired version, Kyle says "Rats!" when he and Stan leave the corpse.