The Roku Channel is Roku's own OTT (over the top) TV app. Just last month, Roku was involved in a spat with Fox Corp. over streaming rights. Roku threatened to shut down Fox apps from its platforms ahead of the Super Bowl. The contract dispute showed that the stakes are getting higher for the tech platforms like Roku, which control the pipes that deliver the apps, and for the media companies that control the content. Roku, like Amazon and Apple, negotiates with the media companies over rights to subscription fees and advertising revenue. On Thursday, another crack between streaming rivals emerged with Apple and YouTube, for instance. YouTube TV, YouTube's OTT TV service that costs $50 a month, will no longer accept subscriptions through Apple's App Store. That rift appears to be about sharing subscription fees, because Apple typically takes a 30 percent cut.