A method for receiving a broadcast signal includes receiving the broadcast signal including physical layer signaling data, signaling data, content data and service guide information, decoding the physical layer signaling data, wherein the mapping information and the information supporting channel scanning and service acquisition are further decoded from the signal frame based on the decoded physical layer signaling data; decoding the content data and the service guide information; displaying an image representing that the alternative camera view is available for the broadcast service; detecting a user input selecting the displayed image for the alternative camera view; and displaying the video component for the alternative camera view on a display screen.