I'm trying to download the video from:
It expires in 3-4 days.

In the past I would get the m3u8 url for the highest I could find using AdBlocker (alphabetical with A being the lowest).

It worked before with ffmpeg when I downloaded the m3u8 file (i.e. g.m3u8) and ran the following code in the same directory as ffmpeg:
ffmpeg -i "g.m3u8" -c copy (720p).ts
This was somebody else's process that worked, but no longer does.

I've also tried livtreamer with:
livestreamer "hlsvariant:(the full m3u8 url here)" best -o file.ts
Neither of those are working.

Any advice?