Lost Our Lisa/References

Episode cross-references

 * The Khlav Kalash/Crab Juice guy from "The City of New York vs. Homer Simpson" appears in this episode.
 * The Orb of Isis is shown inside a pyramid in "Simpsons Bible Stories".

Cultural references

 * The X-ray specs supposedly can't see through lead, much like Superman.
 * The Springsonian museum is named very similarly to Smithsonian Museum.
 * The military base Area 51A is a reference to Area 51.
 * Comic Book Guy asking Lisa three questions is a nod to a scene in Monty Python and the Holy Grail.
 * Comic Book Guy's phrasing "Question the first" refers to Lewis Caroll's nonsense poem The Hunting of the Snark, which is divided into 'fits', listed 'Fit the first', 'Fit the second' etc.
 * The telephone booth Lisa uses in Springfield's Russian district has an onion dome on top, similar to those on Saint Basil's Cathedral.
 * The melody played by the orb is very similar to that played by the music box in the film The Gate II.