Apple has today seeded the third beta of tvOS 9.1 to developers. This comes one week after the last release. tvOS 9.1 brings bug fixes and improvements. We also see early support for Siri when controlling music. On top of that we see some networking and scrolling fixes as well.
Developers can get the latest beta of tvOS from the Settings app or install it for the first time by connecting it to your computer. Then install the IPSW file via iTunes and you’re done.