SANTA CLARA and LOS ANGELES – Content management software company Macrovision announced Friday it intends to purchase Gemstar-TV Guide International, owners of the patents and technology behind much of the installed base of electronic program guides available on cable set top boxes, for US$2.8 billion in cash and stock. Macrovision “is a global leader in protection, enablement and distribution solutions that empower consumers to discover, acquire, manage and enjoy digital content,” says the press release. “Gemstar-TV Guide is a global leader in video and entertainment guidance with products and services that deliver rich data and information to consumers over multiple...