| 摘要 |
A method and mechanism for delivering and processing relational metadata in a television system. A client is configured to receive a broadcast signal and relational metadata which corresponds to received programming. The received relational metadata includes information which identifies two sets of data a nd a relationship between them. Upon identifying the data indicated by the relational metadata and determining the indicated relationship, the client i s configured to perform a predetermined action which corresponds to the receiv ed relational metadata and the identified data sets. The receiver includes, or is coupled to, a mass storage device configured to store received relational metadata and programming. Among the actions which may be automatically performed include replacing the first identified data with the second data o n the storage device, deleting the first or second data from the storage devic e, requesting the second data from a remote location, or copying a previously captured portion of a broadcast signal from a temporary buffer to a mass storage device. Further, utilizing the relational metadata, personalized viewing content and experiences may be created by a viewer.
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