Unfortunately, we do not have a native FireTV app at this time. 

You can mirror your screen to your FireTV. First enable Screen Mirroring on your FireTV:

-Hold down the Home button on your Firestick until the menu comes up, then select Screen Mirroring or go to Settings>Display>Mirrorring

On Windows 10: 

-Click the Action Center button in the bottom right corner of your screen
-Select Connect - then choose your FireTV

-Use your display settings to either mirror your main screen or use the FireTV screen as an extension and drag your browser window where you are accessing the stream onto it.

On Android: 

-Use the pulldown menu and select 'Screen Cast'. You should see your FireTV listed.

-Once you have mirrored your screen to your TV use the nugs.net Android app and access your streams in the My Library>My Events section of the app.

On Mac or iOS:
There are several paid app options for Mac & iOS to mirror to Roku like Airbeam and APowerMirror.

To mirror from Mac to Roku for free:  download the RokuCast Chrome extension from THIS LINK and follow the instructions to install it and connect it to your Roku. Then use Chrome and cast your screen or video from your Mac to Roku.

Unfortunately, it is not possible to mirror iOS devices to FireTV with audio for free at this time.