Advertisements When people simply say "Spectrum," it doesn't mean much. Spectrum is simply branding for conglomeration of (previously) different cablecos, with Charter in the lead, TWC and Bright House being recent acquisitions. The different systems are still, for the most part, different. So what TWC Spectrum does/doesn't do can be very different than what Charter Spectrum does/doesn't do. I've had Charter for years, and there's never been a requirement to have one of their boxes, and no problem getting Cablecards for the TiVos I've had. And, although it's sometimes taken them an hour or two get a Cablecard activated, it's always worked in the end.