The present invention provides a data processing method, the data processing method including receiving a broadcasting signal where mobile service data are multiplexed with main service data, extracting transmission-parameter-channel signaling information and fast-information-channel signaling information from a data group within the received mobile service data, parsing first program table information describing virtual channel information of an ensemble and a service provided by the ensemble using the fast-information-channel signaling information, the ensemble the ensemble corresponding to a virtual channel group of the received mobile service data, obtaining information representing that second program table information, which includes a descriptor describing event information of the mobile service data, is received, from the first program table information, parsing the second program table information, and storing the event information and displaying service guide information including the event information.