Receiver and receiving system and method

A receiving system comprising:

• a receiver for retrieving content related information from a plurality of broadcasting channels, said receiver comprising a receiving section operable to receive said distribution information containing program information and incidental information from said plurality of broadcasting channels, an operation section operable to designate a retrieval key inputted by a user, a retrieval section operable to identify broadcasting channels with incidental information containing said retrieval key, retrieve one or more broadcasting channels with incidental information containing said retrieval key, and retrieve content related information from said one or more broadcasting channels with incidental information containing said retrieval key, and a display section for displaying the content of said content related information;
• and
• an external device including a recording medium having said incidental information stored thereon,
• wherein said retrieval section is operable to retrieve said content related information from said distribution information received by said receiver, and from said incidental information stored in said storage medium within said external device.

A receiving method for retrieving content related information corresponding to a retrieval key by using distribution information of a plurality of broadcasting channels received, said receiving method comprising the acts of:

• receiving said distribution information containing program information and incidental information;
• designating a retrieval key;
• identifying broadcasting channels having incidental information including said retrieval key
• retrieving content related information from at least one of said broadcasting channels having said incidental information including said retrieval key;
• and
• displaying said content related information from at least one of said broadcasting channels having incidental information including said retrieval key.