- 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".
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