Method of transmitting/receiving digital contents and apparatus for receiving digital contents

An apparatus receiving a service associated with digital broadcast contents through an internet network in accordance with an internet protocol (IP), the apparatus comprising:

• an interface configured to receive a payload and a transport stream from the internet network, wherein the payload carries a broadcast discovery record including service information (SI) describing a service associated with the digital broadcast contents, the broadcast discovery record including transmission identification information for identifying a transport stream carrying service event information of the service and wherein the transmission identification information is link information between the service event information and the service and the transmission identification information includes a network identifier, transport stream identifier, and service identifier in a transmission system;
• an IP manager configured to parse the payload and parse the transport stream using the transmission identification information parsed from the payload;
• a service discovery manager configured to obtain the service event information from the transport stream using the transmission identification information;
• a decoder configured to decode the service event information;
• a controller configured to control the obtained service event information and the decoded digital broadcast contents to be output;
• and
• a display configured to output the service event information and the digital broadcast contents according to a control signal of the controller.