It appears that there are conflicts going on with the streaming hardware providers. Before Chromecast, there were conflicts between Google and Roku. You cannot play youtube on Roku. Amazon sells Roku and recommends it. but many Roku owners complain that movies from amazon instant video lock up about half way through. This has been my experience and I dumped Roku and got a Sony Blu Ray player that's compatible with Amazon. Since both Amazon and Google have "cloud services," they might not play nice together. I'm sure Google wants us to get our streaming movies from the play store while many of us are Amazon prime members and want to get movies from Amazon. My primary reason for being an Amazon prime member is for the free shipping since we buy a lot of stuff from Amazon. Living in a small town limits our selection of products and Amazon prices are cheaper 90% of the time plus I don't like to shop. The thing I like about amazon prime tv is the older tv series that can be watched without commercials. I'm hoping to get our tv hooked up to be able to cast from the pc to tv via Chromecast. If Roku would have worked with Amazon, I would not have bothered with Chromecast or bought a new dvd player. Roku did keep track of the series episodes watched which was a nice feature. It's frustrating for some of us that the devices and channels are not all compatible with each other.