an episode of Sesame Street
... that an episode of Sesame Street featuring the Wicked Witch of the West only aired once because it terrified children?
... that <b id="mwBrk"><a class="mw-redirect" href="./Episode_847_(Sesame_Street)" id="mwBro" rel="mw:WikiLink" title="Episode 847 (Sesame Street)">an episode of <i id="mwBrs">Sesame Street</i></a></b> featuring the <a href="./Wicked_Witch_of_the_West" id="mwBrw" rel="mw:WikiLink" title="Wicked Witch of the West">Wicked Witch of the West</a> only aired once because it terrified children?