To "download" these channels, you aren't saving the videos themselves but rather importing a link into a compatible player that streams them for you. Master-list Free Working M3U (Custom Channels)
An is essentially a text-based map that tells a media player where to find live TV streams or video files on the internet. "Sammy123 plus m3u" likely refers to a specific curated playlist or a user-generated configuration for tools like Samsung TV Plus or Channels DVR . 📺 How to Use an M3U Playlist Download channels sammy123 plus m3u