An image display apparatus includes: a display unit having a main display area for displaying an image of a main channel and a sub display area for displaying images of channels which can be interchanged with the image of the main channel in the main display area; a replacement unit for replacing the images of the channels displayed in the sub display area with images of other channels not displayed in the sub display area; and a control unit which, after an operation to interchange images of channels in the main and sub display areas is performed with the image of the channel displayed in the main display area as an interchange source, controls to prevent the image of the interchange source channel previously displayed in the main display area which after the interchange is displayed in the sub display area from being a replacing target of the replacement unit.