Which invention, first demonstrated at the 1939 New York World's Fair, revolutionized product marketing by allowing consumers to see products in use before purchasing them?

Before flashy product launches and viral marketing campaigns became the norm, one revolutionary invention changed how consumers experienced new products forever. This pivotal innovation transformed retail demonstrations from static displays to interactive experiences, setting the stage for today's immersive product marketing strategies. Test your knowledge of this game-changing retail innovation that bridged the gap between seeing and experiencing products.

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Television
Holographic display
Automatic vending machine
Animatronic mannequins