In a thumbnail screen, categories and category thumbnails are disposed and displayed in the depth (Z-axis) direction and in the horizontal (X axis) direction, respectively. When focus is given by a focus to any of upper and lower category thumbnails, which are displayed on the most front side, and a category name display part, the row (layers) of the thumbnails scrolls in the horizontal direction. When the right and left direction keys of a remote controller are operated while the category name display has focus, the scroll in the depth direction is performed, thus enabling the specification of a desired category. This three-dimensionally displays the thumbnails and facilitates the operation for viewing information.