Guide information is provided relating to playing/viewing of content retrieved through various modalities such as television broadcasting and a computer network. A unified program list is created that comprehensively handles program content. For a self-recorded program, program metadata retrieved during a recording operation is additionally registered. For a network program, a network program list is periodically retrieved from a service site, modified and recorded. To play the content, a guide screen is created and supplied based on a unified program list. When a self-recorded program is selected, the program is read and played from an HDD. When a network program is selected, the program is played in a streaming manner via the Internet.