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.