This and the aired version are the only full length episodes to be animated by stop motion on construction paper.
Eric Cartman has a sister and father in this episode. They are absent from the actual series.
Trey Parker and Matt Stone credits themselves as "Tupac Schwartz" and "M.C. Goldstein" respectively as the show's writers in the opening credits.
Wendy Testaburger's voice is lower than in the aired pilot. This is likely because Mary Kay Bergman did not voice any of the female characters in "The Unaired Pilot". All of them were instead voiced by Karri Turner.
When officer Barbrady confronts the runaway cows near the railroad crossing (at about 8 mins), the motto on his South Park police car reads "To Patronize and Annoy." rather than "To Protect and Serve"