A method and system for manipulating a broadcast signal utilizes a sliding-window time range multicast or a buffered storage queue at the headend. Multiple streams are available to the end user, which each stream originating from a corresponding different playback point in the sliding-window time range or headend buffered storage queue.

 
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< Information signal transmission device

< Providing VCR functionality for data-centered video multicast

> DTV data service application and receiver mechanism

> Buffered coscheduling for parallel programming and enhanced fault tolerance

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