Complex sentence: The Theater Department also uses the Metcalf Experimental Theater, a separate building named after James F. Metcalf (father of actress Laurie Metcalf) that opened in 1984 as a replacement for an old Quonset hut that was used for productions.
Split into simpler sentences: The Theater Department also uses the Metcalf Experimental Theater, a separate building named after James F. Metcalf (father of actress Laurie Metcalf) that opened in 1984. This facility was a replacement for an old Quonset hut that was used for productions.