Methods and systems are disclosed for decoding image data including I-picture, P-picture, and B-picture encoded data. In one form, the television signal receiver correlates a main video signal with the auxiliary video signal in order to ascertain when andor where to insert the auxiliary data in to the auxiliary video signal. The fire retardant is selected from the group consisting of disodium ocataborate tetrahydrate, Colemanite 3. Based on data generated by the activities of the decision agents and on preference data maintained by consumer personal agents, provider personal agents can quantify current, historical, and future demand, simulate demand, and target specific consumers for advertising and other messages. This makes it possible to prevent the catalyst from being exposed to a lean atmosphere.