method for receiving preview contents and IPTV receiver

The preview in case of the present invention, the user and there is an SD & S server as to allow to check the contents of the content beforehand notifying the presence of the preview content information and the preview content by transmitting preview content in case of transmitting information from the program guide service provides the connection information containing the identifying information that can identify the content to the reception device, and the program guide server provides the preview content with the case to provide the information in the program guide service on the receiver device, the receiving device in the program guide service the preview content displayed with the case of displaying information on the screen by the user to watch the preview content. IPTV. Preview content, program guide, previews, still images, video, AV signal