first musical episode
... that the first musical episode of Grey's Anatomy was conceived over seven years before it was produced, while the series was still untitled?
... that the <b id="mwBj0"><a href="./Song_Beneath_the_Song" id="mwBj4" rel="mw:WikiLink" title="Song Beneath the Song">first musical episode</a></b> of <i id="mwBj8"><a href="./Grey's_Anatomy" id="mwBkA" rel="mw:WikiLink" title="Grey's Anatomy">Grey's Anatomy</a></i> was conceived over seven years before it was produced, while the series was still untitled?