Which failed product launch in 1985 led to massive consumer backlash and became a cautionary tale about changing established products, ultimately forcing the company to reintroduce the original formula?

Throughout history, some product failures have become legendary - not just for their commercial disappointment, but for how they transformed business practices and shifted entire industries. This trivia question examines one such iconic product failure from the 20th century that fundamentally changed how companies approach product testing and market research. Test your knowledge of these pivotal moments in product history!

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New Coke
Apple Newton
Ford Edsel
Sony Betamax