In the She-Ra episode "The Anxious Apprentice" we see Ariel, Castaspella's apprentice, sulk off to her room, frustrated at her education. In the establishing panning shot we can see that her room looks rather lovely. However, upon closer inspection we can see that the corridor outside her room looks a lot like those seen within the Royal Palace on Eternia. This is because Ariel's room is in fact Teela's room as seen in the season one He-Man episode "The Starchild".
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