As one of the goofs, the "Cleveland Rocks" theme song was changed from the version done by The Presidents of The United States of America to one done by Ian Hunter.
The sign says 4friends 4beer 4ever. But really the Buzz Beer founders also included Lisa and Jay.
According to this episode, Drew says that Lewis was a straight A student until he met Oswald. In "Drew vs. Mimi, Part II," however, Lewis reveals that he was a chemist for DrugCo before he unwittingly released a strain of bacteria and was demoted to janitor. To be a chemist for what I imagine to be an imminent corporation, Lewis would still have to maintain the high credentials, which would means straight A's, superb school, and other options.
Craig Ferguson does not appear in this episode.
When Kate enters pregnant, it is given as a goof.
In fact, Christa Miller was pregnant and gave birth about three months after this episode aired. That's why we dont see her stomach during the following episodes. (Kate is in bed, in a dress etc.)
Pinocchio: I see dead people.
This is a famous line from the the 1999 film, "The Sixth Sense."
Pinnochio appears in a brief scene in a reference to Drew Carey's first movie, "Geppetto." On first airing, Drew mentions the upcoming airdate of the movie (syndication removes this bit).
Oswald: Hey! I only played a hillbilly in one movie, and actually I'm quite bright.
Diedrich Bader (who plays Oswald) appeared in the 1993 movie remake of "The Beverly Hillbillies" as Jethro Bodine.