If it isn't a cloud DVR but one with a physical hard drive, provided that the recorded show is not encrypted and that the STB has a firewire port and you still have a computer with firewire, then there are ways. The odds of having any firewire devices these days are slim to none unless you have a really (like 2000-2005) old computer.Is it possible to save/transfer/copy existing recordings on spectrum DVR to a Roamio when activating the roamio/cable card.
I figured no, but why not ask.