This week Rovi Corporation filed two lawsuits against Comcast, the first of the so-called “Big Four” pay TV companies not to renew its license to Rovi’s patent portfolio before expiration. Investors have been watching since at least the beginning of 2015 whether DISH (Echostar), DirecTV (now owned by AT&T), Comcast, and Time Warner Cable (nearing possible acquisition by Charter) would extend or renew license agreements entered into years ago with Rovi (or its predecessors). The plaintiffs are three Rovi subsidiaries—Rovi Guides, Inc.; Rovi Technologies Corporation; and Veveo, Inc.—each of which owns some of the 14 patents-in-suit. The defendants are Comcast and DVR and set-top box manufacturers ARRIS (Pace), Humax, and Technicolor. Comcast is accused of infringement through provision of its Xfinity television products and services, including its X1 interactive program guide.