It just sits there next to your television, dusty and neglected, taunting you. But you’re almost powerless to get rid of it. It’s that ugly black set-top box. And even now, in the era of the connected home and smart devices, this relic of the 1990s stubbornly holds on. While increasing numbers of people have cut the cord and stream content via Chromecast or Roku, tens of millions of people continue to pay that annoying monthly fee to rent their set-top boxes.