- The title is an inversion of the phrase "flip the switch."
- Meg appears but has no dialogue.
- The show calls on the audience to pay attention when Stewie explains that even though they have swapped bodies, their own voices will be heard.
- Brian finds Stewie's huge head unwieldy.
- Brian notes that every device that Stewie has invented has broken just when they needed it.
- When Stewie tries to imitate Peter, Quagmire is instantly aware that they have all swapped bodies.
- Diane and Muriel's gravestones reveal they were born in 1970 and 1968, respectively.
- Peter, in Stewie's body, calls attention to his car seat not being properly attached.
- Lois is unaffected due to already being in Weekapaugh at the time of Brian's car wreck, although the distance does not seem to affect Brian's placement in Peter's body.
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