A remote control (140, 200) for an entertainment system, comprising: at least one interchangeable panel having two or more fixed buttons in a predefined order arranged in a row where the two or more fixed buttons are not interchangeable, each fixed button having a receptacle interface on a first side, a user-perceivable label on a second side, and an electrical element (500, 800) embedded therein, wherein the electrical element (500, 800) of the fixed button is configured to correspond to the user-perceivable label of the fixed button, and wherein the electrical element (500, 800) of the fixed button includes a passive electrical element, a transistor, or a rectifier; a plurality of interchangeable buttons (250, 300), each interchangeable button (250, 300) having a receptacle interface on a first side, a user-perceivable label on a second side, and one or more electrical elements (500, 800) therein, the one or more electrical elements (500, 800) corresponding to the user-perceivable label, and wherein an electrical element (500, 800) of the one or more electrical elements (500, 800) includes a passive electrical element, a transistor, or a rectifier; and a platform having a plurality of receptacles, each receptacle configured to accommodate any of the plurality of interchangeable buttons (250, 300), and the platform further including different rows of receptacles (220, 230), wherein the at least one interchangeable panel having the two or more fixed buttons is inserted into any one row of the different rows; wherein the platform is configured to provide, for a receptacle having an interchangeable button (250, 300) or a fixed button engaged therewith, an electrical signal based at least in part on the one or more electrical elements (500, 800) of the interchangeable button (250, 300) or the electrical element (500, 800) of the fixed button, wherein the user-perceivable label of the fixed button or the interchangeable button is a unique user-perceivable label directed to functionality of the fixed button or the interchangeable button, the electrical element is configured to functionally correspond to the unique user-perceivable label on the second side of the fixed button or the interchangeable button, there is an established unique correlation between the unique user-perceivable label on the fixed button or the interchangeable button and the electrical element, and the platform comprises, for each receptacle, a sensing circuitry that is configured to recognize a defining property of an electrical element inserted into the receptacle. at least one interchangeable panel having two or more fixed buttons in a predefined order arranged in a row where the two or more fixed buttons are not interchangeable, each fixed button having a receptacle interface on a first side, a user-perceivable label on a second side, and an electrical element (500, 800) embedded therein, wherein the electrical element (500, 800) of the fixed button is configured to correspond to the user-perceivable label of the fixed button, and wherein the electrical element (500, 800) of the fixed button includes a passive electrical element, a transistor, or a rectifier; a plurality of interchangeable buttons (250, 300), each interchangeable button (250, 300) having a receptacle interface on a first side, a user-perceivable label on a second side, and one or more electrical elements (500, 800) therein, the one or more electrical elements (500, 800) corresponding to the user-perceivable label, and wherein an electrical element (500, 800) of the one or more electrical elements (500, 800) includes a passive electrical element, a transistor, or a rectifier; and a platform having a plurality of receptacles, each receptacle configured to accommodate any of the plurality of interchangeable buttons (250, 300), and the platform further including different rows of receptacles (220, 230), wherein the at least one interchangeable panel having the two or more fixed buttons is inserted into any one row of the different rows; wherein the platform is configured to provide, for a receptacle having an interchangeable button (250, 300) or a fixed button engaged therewith, an electrical signal based at least in part on the one or more electrical elements (500, 800) of the interchangeable button (250, 300) or the electrical element (500, 800) of the fixed button, wherein the user-perceivable label of the fixed button or the interchangeable button is a unique user-perceivable label directed to functionality of the fixed button or the interchangeable button, the electrical element is configured to functionally correspond to the unique user-perceivable label on the second side of the fixed button or the interchangeable button, there is an established unique correlation between the unique user-perceivable label on the fixed button or the interchangeable button and the electrical element, and the platform comprises, for each receptacle, a sensing circuitry that is configured to recognize a defining property of an electrical element inserted into the receptacle.