The present invention allows control of the presentation of advertisements that are associated with television networks, channels, and programs, and enables a single broadcasting of each advertisement associated with a network to be made to numerous television systems in parallel. The presentation of advertisements that are associated with television networks, channels, and programs is controlled in the present invention by determining at television viewer equipment whether the television networks, channels, or programs with which the advertisements are associated are unavailable to the television viewer or are undesirable to the television viewer. Once this determination has been made, the television viewer equipment then presents the advertisements, or selects and presents suitable alternative advertisements.