A method is disclosed that includes receiving a multimedia data stream comprising audio data, video data, and text data at a first electronic device of a plurality of electronic devices responsive to a network. A content structure of the multimedia data stream is automatically determined at least partially based on the text data. The portion of multimedia data stream is stored in a local media database and the associated content structure is stored in a local content index. A network index alert is generated to update a centralized content index of available media content via the network.