The third episode of The Simpsons' thirteenth season is "Homer the Moe." On November 18, 2001, it debuted on the Fox network in the United States. In the episode, Moe decides to renovate his bar after consulting with his former bartending professor. When this fails to attract new customers, he puts Homer in a fake movie to attract more people. This causes problems for everyone involved as they try to figure out what role they are supposed to be playing. Moe's Bar was originally going to be destroyed by a giant boulder that would roll in during opening night until it was decided this would be too unrealistic. Instead, the staff decided to have it blown up at the end of opening week. Homer Simpson's first appearance was in this episode. He was designed by Matt Groening himself and given his famous mustache later. His catchphrases "Ooh, yeah!" and "D'oh!" also make their debut in this episode. Principal Skinner's first appearance was in this episode too. He was designed by Matt Groening's wife Lisa and given his famous mustache later. His catchphrase "I'm Bart's father. Not yours. Mine!..." also makes its debut in this episode. Lenny Leonard's first appearance was in this episode too. He was designed by Matt Groening's friend Terry Jones and given his famous mustache later.