When searching for programs similar to a program designated by a viewer, a program selection support device not only searches for similar programs based on program-related information such as program contents, but also determines an algorithm used for similarity judgment based on viewer-related information, such as a program viewing history of a viewer, personal information of the viewer, evaluations by other viewers, and information added by a program producer, or based on a category of the designated program, and searches for similar programs using the determined algorithm. The program selection support device displays the programs found as a result of the search.