Stranger Things × Doritos: How LiveKit and Casper Studios Powered an Interactive Telethon for 400,000 Fans

Netflix and Doritos collaborated to create a unique promotional campaign for the final season of Stranger Things, where fans could engage in an interactive experience reminiscent of an '80s telethon. This involved calling a number on special-edition Doritos bags to interact with AI-powered versions of '80s icons like David Hasselhoff and Paula Abdul, in a choose-your-own-adventure format. The system used a hybrid approach, integrating voice AI with a library of pre-recorded celebrity voiceovers, to maintain a human touch as desired by the show's creators, the Duffer Brothers. Casper Studios chose LiveKit Cloud to manage the complex task of handling live sessions with dynamic, non-linear call flows, allowing for scalable, real-time interaction without infrastructure management. This innovative approach resulted in over 400,000 interactive call sessions, highlighting a potential blueprint for future voice-driven marketing campaigns across various brands, as Omnicom and partners explore similar experiences.