Perhaps give this a shot (haven't tried it myself but someone reported it to work as late as April):
https://gist.github.com/primaryobjects/7423d7982656a31e72542f60d30f9d30
_"No need to download a program for this if you've already got VLC!
Just open VLC, then click the "Media" menu and then click "Open Network Stream…" (or similar) and then paste the m3u8 URL in the box: https://i.imgur.com/CjWZjtb.png You can then click play, or click the dropdown menu next to the play button and click "convert" to download it.
Awesome. Thank you for the tip."_