How does it work?
So a Cablevision subscriber actually has to press the button to order a recording of a TV show prior to that show going out on air - the ruling makes this much clear.
Systems-wise however when that happens is a different recording made for each subscriber, or does every Cablevision subscriber who ordered a recording of a TV channel simply playback the same recording off the same server?
Indeed, are Cablevision thus recording the whole day's broadcasting of a number of TV networks onto these servers rather than waiting for the recording to be triggered by a subscriber?
If so (and I've no idea if it is so!), the interesting thing is that it would be a quite different kettle of fish of Cablevision were to retroactively make these recordings available to subscribers who had not ordered them prior to the show going out - technically it wouldn't make much difference, but legally it would mean that the viewer was no longer the entity doing the timeshifting and instead that would be Cablevision, which would indeed then be trampling on the rights of the networks by basically pirating their content.
Of course, the way it stands at the moment is quite compatible with the law - the DVR provides a timeshifting system for the subscriber, and it doesn't matter whether the HDD to provide that is sat in a subscribers home or in a server room at the cable headend - the physical location is irrelevant so long as it is providing the same functionality.
(To be clear one should not confuse this with the Video-On-Demand aka VOD services that many cable operators now provide - as cable operators specifically hold the rights to VOD programming that they make available on their systems - this issue concerns the recording of broadcast television stations.)
Paris, because she'll perform for video on demand.