To realize a display device that displays useful information by combining meta information on a program that a user has at least partially viewed and a reaction of the user while viewing.SOLUTION: The display device includes: a related information acquisition unit (15) for acquiring related information related to a program at least a part of which a user has viewed; a timing specification unit (30) for specifying reaction timing; and a display control unit (12) for displaying related information determined according to the reaction timing.SELECTED DRAWING: Figure 1
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