| 摘要 |
The invention involves an interactive system and method for selection and display of advertisements, product information and other information in programming that can be updated at any time by advertisers and accessed at any time by television viewers without requiring any more functionality from the user terminal than is currently required for interactive services. The invention preferably utilizes insertion of a large number of interactivity points into video programs associated with certain times or frames of a program that can be compared to supplemental information locations in a program to obtain supplemental information links.
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