| 摘要 |
A system for presenting audio-video programming with alternative content comprises a first input port for receiving a first signal containing at least one audio- video program, the at least one audio-video program having at least one default component associated therewith and a second input port for receiving a selected alternative content stream, the selected alternative content stream selected from a plurality of available alternative content streams. The system further comprises a first output port for transmitting a modified audio-video program to an output device, and at least one controller in communication with the first input port, the second input port and the first output port. The at least one controller is operative to (i) synchronize the at least one audio-video program and the selected alternative content stream to form the modified audio-video program and (ii) transmit the modified audio-video program via the first output port. |
