The new characters include parodies of the Sesame Street characters Big Bird, who describes himself as a "big bird," and a self-described "grouch" named "Moody Green Garbage Creature", who resembles Oscar the Grouch, and butch and femme versions of Bert and Ernie, who try to protect Karina and Julie from Oscar.
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Although never specifically referenced or mentioned in the episode itself, Stewie's alter-ego is named after well-known ballroom dancer Karina Smirnoff, who had previously danced professionally on the American television reality show Dancing with the Stars.
Stewie Griffin | Stewie Loves Lois | Stewie Dempster | Go Stewie Go |
In the original American broadcast, "Postcards from the Wedge" was viewed by 5.233 million viewers and got a 18-49 Nielsen rating of 2.6/8 coming second in its timeslot after The Amazing Race making it the third most viewed show on Fox that night after a new episode of Family Guy and a rerun of the Simpsons episode, "The Great Wife Hope", but the second highest rated show on FOX that night after Family Guy.