Everybody still standing? I don't think you ever forget your first viewing of "This is Not Happening." How many of us were screaming "No!" right along with Scully at the end of the episode? It's intense, emotional, terrifying, heartbreaking and made all the more powerful by wonderful performances from all the actors, not to mention Mark Snow's score. "This is Not Happening" was the highest rated episode of Season 8, and the Rewatch Crew reminds us why.