In order to install the Tivimate Iptv video player app on your android tv, Nvidia shield, smart tv, fire tv stick/cube etc, you must first download on the device and also enable apps from unknown sources for the device.
Tivimate For Android
APK File Download Link: Download
Google Play Store Link: Download
After you install the app open it you will be greeted with this screen, sometimes it will prompt you to update to the latest version update if this occurs. Then select add playlist button
Select Xtream Codes Login from list
Enter server address it is the first part of the m3u URL before the third backslash "/". Then enter your username and password and select next.
The app will start to process the details and install the channels and tv guide. Click done when finish, if it says error go back and make sure and check if the details are correct