Which product innovation first allowed Netflix to transition from a DVD rental service to a streaming giant by enabling personalized viewing recommendations?

Streaming services have dramatically changed how we consume film and television content over the past decade. This transformation has been marked by significant product innovations that have revolutionized the industry's business model and viewing experience. Test your knowledge about one of the most significant product innovations that disrupted traditional viewing patterns and created new opportunities for content creators.

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Cinematch algorithm, which analyzed viewing patterns to suggest content users might enjoy
Original content production, beginning with 'House of Cards' in 2013
Multi-device synchronization that allowed viewers to switch between devices seamlessly
The introduction of subscription tiers with different pricing and features