Information on demand

A broadcast data receiver for the reception of data broadcast from a remote location, processing of the data and generation of video and/or audio therefrom in the form of a television programme for viewing. The receiver includes a table, such as an Event Information Table (EIT) which includes one or more strings of data. A user can request to be informed of an occurrence or occurrences of data from one or more of the strings being identified in a user-selected programme. The receiver informs the user of an occurrence and/or every occurrence of said data identified in said selected programme at the time of said programme being broadcast. Alternatively, or in addition to, the user can select to be updated with information relating to the occurrences of data at their convenience by selecting a pre-designated button on the remote control unit.