Cablevision appears to have responded to Verizon's new Quantum TV DVRs, which can record twelve programs at once. According to Cablevision, they've upgraded their network-storage DVR so that it now records a whopping fifteen programs at the same time. The upgrade should be made available immediately for Cablevision customers.
It would be much more welcoming to see these two companies duke it out over price as opposed to improvements with niche appeal, though that's been happening less and less over the last few years. Both companies, tired of seriously competing with one another, have been dramatically cutting back on price promotions in recent years and shifted their focus to price hikes. That you can now record six-hundred-and-seventy-two programs simultaneously is apparently supposed to distract you from this fact.