I am working on a FireTV version of the app if anyone is interesting in trying it. Please post what kind of FireTV device you have, and if what your experiences with other HDHR software (VIEW, InstaTV, Kodi, etc) have been.
It seems the mpeg2 decoder on the FireTV cannot handle interlaced channels at all, so the FireTV version of the app will require the DVR server to deinterlace and transcode content (like the Roku app).
To receive the FireTV test app, please go to https://www.amazon.com/gp/cpc/homepage?ref=gss_to_cpc, click on Promotional Emails and make sure “Amazon Appstore” is checked. Otherwise you won’t be able to receive the beta invite. Then post below asking for an invite.
Once I invite you, you will receive an email with the subject “Amazon Appstore Live App Testing Invitation” that looks like this: https://developer.amazon.com/public/resources/development-tools/live-app-testing/docs/getting-started-with-live-app-testing#steps-for-app-testers