Follow That Egg!/Trivia

Trivia

 * In a blooper, Craig is paired with two girls (Milly and Red) by Mrs. Garrison. However, when the children actually pair up for the project, Craig goes with Red and Milly goes with Clyde.
 * Butters does not appear in this episode, so he's presumably still chained up in his parent's basement, following the events of the previous episode, "Marjorine". Pip, Tweek, Jimmy, and Francis are also absent from the class.
 * This episode and "Ginger Kids" are the first instances of Sally, Esther, Milly, and Heidi appearing in the classroom. This episode also marks the first appearance of Lola.
 * This episode shows that Stan and Wendy still have feelings for each other.
 * The couples in the egg project are initially:
 * Stan and Bebe (later Stan and Kyle)
 * Kyle and Wendy (later Bebe and Wendy)
 * Cartman and Heidi
 * Kenny and Sally
 * Craig and Red
 * Clyde and Milly
 * Token and Lola
 * Bradley and Esther
 * Timmy and Annie
 * Although Bebe and Wendy are also a same-sex couple, Mrs. Garrison didn't consider their results in his "scientific study".
 * When Stan and Kyle are running through the crowd, Thomas Tucker in his metrosexual outfit can be seen.
 * This is the second time Kyle has had a bandage around his temple, the first being "Cartman's Incredible Gift".
 * The paperwork about the egg that Stan and Kyle had to turn in read the following: Morning: Woke up at 7am. Washed egg in sink. Dried. Dusted in baby powder. Dressed egg in overalls and combed hair. EGG IS VERY HAPPY!! Afternoon: After lunch egg watched basketball game on the playground. After, took nap. Stan is a protective father. Evening: Took shower with egg. Egg went to bed at 8:40pm

References to Popular Culture

 * The scene in which Kyle reveals he had hidden the real egg and replaces the one "killed" by the assassin is a reference to Star Trek. When Kyle asks Stan if he really thinks his hat is stupid (a comment made by Stan over the phone earlier in the episode), Stan approaches Kyle and says, "As a matter of fact, I think it is the nicest hat I have ever known". Stan uses the exact same intonation and style of Captain Picard in Star Trek: First Contact, when he apologizes to Mr. Worf after calling him a coward by saying: "In fact, I think you're the bravest man I have ever known".
 * The song Mrs. Garrison sings, "Love Lost Long Ago", sounds very similar to "Love Changes Everything", the theme song from Andrew Lloyd Webber's musical, Aspects of Love.
 * When Stan is sitting at the coffee table and then at the kitchen table, Stan's arms are drawn similarly to those of Linus and Charlie Brown from Peanuts, usually as they are leaning on the brick wall. He has large forearms and his fingers (he's not wearing gloves) are displayed; at the kitchen table, one arm is resting on the table and his other hand on the side of his face, a pose often assumed by Peanuts characters.