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Animation and/or technical glitches
- Clearly there were numerous animators used on this episode and its followup as the character models change (in some cases jarringly so) throughout the entire episode.
- Professor Mullaney would make another appearance in "Joe's Night Out".
- Shipwrecks's address in Springfield is 6 Village Drive, a reference to the classic Patrick McGoohan series The Prisoner.
- The plot of the episode also follows the premise of The Prisoner: A man who holds a secret of great interest is dropped into a village that appears for all intents and purposes to be normal and idyllic, yet is designed to get him to crack and give up the secret he holds.
- Early in the episode, Polly warns Shipwreck that they have "miles to go before we sleep." This is a quote from Robert Frost's poem, Stopping by Woods on a Snowy Evening.
- The title is a reference to the film The Wizard of Oz.
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