The present invention relates to a data processing apparatus, a data processing method and a program, and a data processing system which are configured to provide an EPG as a user interface that further facilitates decision on whether to view or record a program. By aggregating information uploaded from a user side, statistical data, such as the number of persons who viewed a program during its broadcast time, an audience rating of a program during its broadcast time, or a good impression level representing how the user feels about a program, are calculated, whereby an EPG page is automatically generated in which the statistical data and program guide data that gives guidance on programs are superimposed. The present invention is applicable to, e.g., a broadcasting system that broadcast television broadcasting programs.