Two paranormal investigators turn their spotlight on the haunted history behind the scenes at the famous movie studio.   Talented entrepreneur Carl Laemmle led and won the fight against Thomas Edison's filming monopoly and built Universal City out of the dirt of Hollywood. He created a place of wonder and imagination, and now, decades later, Universal Studios is filled with rumors of ghosts.    Frank Stites, an aviator killed while performing stunts during the grand opening celebrations in 1915, is said to still roam the backlot. Lon Chaney, a silent film actor, plagues sound stage no. 28, while Alfred Hitchcock haunts Steven Spielberg's office. Even Lucille Ball has been spotted more than once long after her death.