Here's the raw, and here's the indonesian sub, but I don't think there's an english sub yet.
You can actually have the FireTV work just like the Chromecast using Cheapcast. Sideload Cheapcast on your FireTV and use any android device to Cast to it. The apk can be found here:
http://www3.zippyshare.com/v/69704305/file.html Mirror: http://www.tusfiles.net/p4e1p7h4zcsn