Streaming services that use a cable TV subscription have an annoying wrinkle, where sometimes the provider can block them from working in places for apparently no reason at all. For Comcast customers that was the case for HBO Go and Showtime on Amazon's Fire TV and Fire TV stick, but starting today that changes. Like the agreement it reached a few months ago with Roku, Comcast is suddenly playing nice with Amazon's streaming hardware. Unfortunately, that courtesy still does not extend to Sony's PlayStation 3 and PlayStation 4, but according to Comcast it supports over 90 networks across 18 devices and expects that number to grow, so maybe there is hope.