Mitchel Musso was the voice of Aang in the unaired version of
the pilot episode in Avatar: The Last Airbender.
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The final episode of Lost in Space, titled "Junkyard in Space," was filmed in 1968.
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Watching the unaired pilot from Moonlight is simpler than made
out to be. Simply going to any search engine and typing in "Unaired
pilot from Moonlight" will bring you to multiple websites. Some
free, some you would have to pay for.