Through the "What I Know" app, real-time viewers can get involved in a RTVS-like TV entertainment contest. Thanks to the unique application control system using sound codes from the broadcast program, viewers with the app experience the same feelings as the contestants in the studio and simultaneously compare their knowledge in real time with them. Rates for the game can also be interesting prizes, which users will learn more directly in the app. For more information on the TV show itself and its broadcast, please visit www.rtvs.sk