An audio/visual amplifier for processing video signals and audio signals includes a display controller operable to control display of a menu such that an input name, which is an item of the menu and represents a unit of an input to be selected by a user, a name of a first terminal that is assigned to the input name and that receives a video signal, and a name of a second terminal that is assigned to the input name and that receives an audio signal are displayed so as to be assigned to each other; and a selector operable to, when the user selects the input name as the item of the menu, select the video signal received from the first terminal and the audio signal received from the second terminal.