IPTV Smarters Pro is one of the best IPTV players you can use to watch IPTV content. So, let’s install IPTV Smarters Pro on your Nvidia Shield TV.
[1] Turn on your Nvidia Shield TV and go to the home screen.
[2] Select the Apps tab from the home screen and choose the Google Play Store to launch it.

[3] Click on the Search icon from the upper right corner.

[4] Search for IPTV Smarters Pro using the search bar.

[5] Select the IPTV Smarters Pro app from the search results.

[6] Now, select the Install button from the app info page.
[7] Within minutes, the IPTV Smarters Pro app will be installed on your Nvidia Shield TV.
[8] After that, hit the Open button to launch the IPTV Smarters Pro app.
[9] Accept the terms and conditions.
[10] Then, you will see this screen on your TV.

[11] Follow the steps below to watch IPTV content using the IPTV Smarters Pro app.

Now, you can watch IPTV content on your Nvidia Shield TV.
It's free. No subscription required