A method for controlling a multimedia device, which uses a plurality of heterogeneous image sensors, comprises the steps of identifying at least one user located in the periphery of the multimedia device under the control of a first image sensor for extracting depth data and a second image sensor for extracting color data; accessing a memory that stores a preference channel per user; extracting information on the preference channel corresponding to the identified user, from the accessed memory; performing a control operation for switching to the preference channel based on the extracted information; and monitoring change of a user located in front of the multimedia device.