Rovi
Rovi Corporation was an American technology company that provided entertainment metadata, search and discovery services, and licensing for the media industry. The company originated as Macrovision Corporation, which was known for its copy protection and digital rights management technologies used by the video industry.
In 2008 Macrovision completed its acquisition of Gemstar-TV Guide International, the owner of the TV Guide
As Rovi, the company operated a large entertainment metadata database used by set-top boxes, online services,
In 2016, TiVo Corporation completed its acquisition of Rovi, creating a combined company focused on video discovery,