Rovi is closing in on a deal to buy DVR maker TiVo for an unknown price, according to sources from the New York Times. The exact terms aren't yet known, but TiVo reportedly has a market value of around $750 million. If the name "Rovi" isn't ringing a bell, the company makes interactive TV guides that are used by 18 million or so TV subscribers. You may remember it better for its much-hated DRM copy protection, when it used to be called Macrovision. TiVo, of course, is known (and mostly liked) for ad-skipping DVR products like the 4K TiVo Bolt.