In this work we present a novel interaction approach based on a gesture recognition system using a Microsoft Kinect sensor. Gestures are defined and interpreted in order to activate controls on a media device. This natural interface enables intuitive interaction with the multimedia content. The depth sensor observes the scene to detect a request for control in the form of a gesture. Then, the application assigns a control for the media system. The application is tested under various scenarios and proved the reliability and the effectiveness of the proposed approach.