psip defining electronic program guide epg and system information si the psip includes a plurality of tables including information for transmitting receiving a v audio video data made in a mpeg 2 video and ac 3 audio coding 3 audio formats and information regarding channels of each broadcast station and information regarding each program of channel among them information regarding the pmt and information regarding the eit are stored in the pmt buffer 502 and the eit buffer 503 respectively under the atsc standard the digital cable broadcast signal must include a caption_service_descriptor in its pmt or eit the controller 504 reads a caption related option stored in a memory not shown and determines a caption related option selected by a user s 11 for example the caption related option includes various options such as u201c caption off u201d u201c caption service selection cc1 cc2 cc3 u201d u201c english caption display u201d u201c korean caption display u201d u201c size of caption u201d u201c color of caption u201d if a user selects u201c caption off u201d the controller 504 does not display the received caption if a user selects u201c english caption display u201d the controller 504 controls the caption decoders 506 and 507 so that only the caption written in english may.