A method is disclosed for selecting advertising data at an end user device, the method comprising monitoring a plurality of advertising data items in a first video data stream at the end user device; correlating advertising characterization data for the advertising data item with end user profile data for an end user at the end user device; and selecting based on the correlating at least one of the plurality of advertising data items for presentation during display of a second video data stream at the end user device. A system is disclosed for performing the method. A data structure is disclosed for containing data used by the system and method.