Why ? Just if they will make overnight copies from native BR disks to your DVR's drive... You will get full blown PQ ans sound !
But they gotta get that copy to your DVR somehow in a reasonable amount of time. This is were the combined transponders could come into play.
sending to DVR as a file is super duper easy, even a caveman could do it. Streaming live using multiple transponders would take a Lot of engineering work and more than likely a firmware update to the boxs.
either way I think it could be done and providers are choosing NOT to do it.