Which major streaming platform began its business in a completely different industry before pivoting to become a content streaming giant?

The film and television industry has undergone massive transformation with the rise of streaming platforms. These companies have redefined product development strategies, shifting from their original business models to become content powerhouses. This trivia question examines one of the most significant product pivots in modern entertainment history that reshaped how we consume television and films today.

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Netflix (originally a DVD-by-mail rental service)
Hulu (originally a computer hardware manufacturer)
Amazon Prime Video (originally a digital music store)
Disney+ (originally a theme park ticket subscription service)