Through the application of "What do I know" the viewers can participate in real-time to compete in the eponymous television entertainment show RTVS. The unique control system applications using audio codes of the broadcast program, viewers will experience with the application of the same feelings as contestants in the studio and at the same time with them in real time comparing their knowledge. The reward for the game can also be attractive prizes, which are more users learn directly from the app. More informáciíí the TV show itself and on its broadcasting can be www.rtvs.sk