Which innovative product design first debuted in the Broadway production of 'The Phantom of the Opera' in 1988 and revolutionized theatrical set design?

The performing arts industry has continuously evolved through innovative product design and technology. From elaborate stage mechanics of the 19th century to today's cutting-edge production tools, technological advancements have transformed how performances are created and experienced. This trivia question focuses on a groundbreaking product that revolutionized Broadway productions and set new standards for theatrical design worldwide. Test your knowledge of the intersection between performing arts and product innovation!

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The automated rotating stage system that could transform between multiple elaborate sets in seconds
The first computerized lighting console allowing for programmable light sequences
The hydraulic orchestra pit that could raise and lower musicians during performances
The integrated digital sound system with wireless microphone technology