Receiving system and method of processing data

An apparatus for receiving a 3 dimensional, 3D, broadcast service, the apparatus comprising:

• receiving unit configured to receive a broadcast signal including 3D broadcast service data and service information for signaling the 3D broadcast service data, wherein the service information includes first information indicating at least one transmission format of the 3D broadcast service among transmission formats including a side-by-side format and a top-and-bottom format, second information indicating whether the uppermost pixel of the furthermost left side of a frame belongs to a left image or a right image, third information indicating whether one of the left image and the right image of the 3D broadcast service has been inversely scanned, and fourth information specifying which one among the left image and the right image is flipped;
• decoding unit configured to decode the 3D broadcast service data and the service information;
• conversion unit configured to Transition Minimized Differential Signaling, TMDS, code the decoded 3D broadcast service data and generate an InfoFrame packet for signaling the TMDS coded 3D broadcast service data using the service information;
• transmission unit configured to transmit the TMDS coded 3D broadcast service data and the generated InfoFrame packet to a display unit,
• wherein the InfoFrame packet includes a first field having information derived from the first information, a second field having information derived from the second information, a third field having information derived from the third information, and a fourth field having information derived from the fourth information.