When the channels list is divided into particular groups such as movies, sports, documentaries and etc. it is called Bouquets. This feature facilitates the process of channel finding.
In order to edit your M3U playlists, you must first download the M3U file on your computer and then open it with Notepad and start deleting the unwanted channels. After deleting the undesired channels, click on exit and save the changes. Now you can upload this edited playlist to your IPTV device and your new playlists will be placed.