In this tutorial, we will show you how to use an M3U URL on Roku.
HOW TO ADD A LIST FROM A URL

Step 1: Start by downloading the M3U playlist player from the Roku online store.

Step 2: Now click on “Add New or Updated Playlist”.

Step 3: Enter your M3U URL and click on “Save Your Playlist”.

Step 4: Depend on your M3U playlist, it might take a couple of minutes before your playlist gets fully loaded.
Now your M3U playlist is fully loaded and you can start watching TV by selecting any channel.