Fry's cousin

In the 20th century, Fry's cousin owned a van on which there was a mural depicting something similar to Mom's flying castle. In 3013, Fry asked Bender if he remembered that mural, even though he and Bender did not grow up together.

Trivia

 * In 3010, Zoidberg painted Cubert a mural.
 * Interestingly, both 7ACV22 and 6ACV09 are the ninth episode of their broadcast season.