Is there a reason why Prime Video doesn't work on Chromecast and Apple TV? If I were trying out Prime Video, the first thing I'd be doing is trying to make it w

Is there a reason why Prime Video doesn't work on Chromecast and Apple TV? If I were trying out Prime Video, the first thing I'd be doing is trying to make it work with my Chromecast. If I find out I need to buy another Chromecast-like device to make it work, that would work against Prime Video.