* Steve's and Hayley's vacations are two of the few vacations that the Smiths did not go into the goo chambers.
* Roger knew English before landing on Earth.
* The fish Stan sees in Roger's mind has Hayley's hair and headband, Steve's glasses and Klaus' fish body.
* Roger tried out for the part of Vicki in the television show Small Wonder.
* When flexing his chest, Stan hums the song "Orpheus in Hades", also known as "The Can-Can Dance".