This page contains trivia for "Breast Cancer Show Ever". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
Kenny and Kyle don't have large speaking roles in this episode, despite Kyle's often-shown hatred for Cartman. Kyle only has one line, and Kenny has none.
This episode aired in October, which in the United States is Breast Cancer Awareness Month.
A black-haired version of Bradley and a blond-haired version of Bill are seen just before the fight.
It is also the first and only South Park episode to air on TeenNick as of November 11th, 2010. 
The fight scene between Cartman and Wendy, as well as the music, is a direct reference to the final boxing match from the film Snatch.
After the fight, Wendy sits on the ground next to Cartman who lies face down in blood. Mr. Mackey approaches and says "Wendy?" to which she replies "I'm finished". This is a reference to the final scene of the film There Will Be Blood.
Despite the events in "The List", Wendy and Bebe are shown to once again be friends in this episode.
This is the second episode since "The List" to reference Stan and Wendy's rekindled relationship, the first being "Super Fun Time". Cartman references their relationship, saying "You're my bro, and she's your bitch." Pete also mentions their relationship.
Cartman has been involved in a fight before, in "With Apologies to Jesse Jackson", where he managed to fight his opponent pretty well, whereas in this fight he didn't.
This is Tweek's final regular appearance in Mr. Garrison's class.
During Wendy and Cartman's fight, Cartman's face was shown to be bloodied a few frames before Wendy smashed his head into the metal bars.
After the fight, the Boy with Blue Cap periodically switches sides during angle shifts.