I keep seeing this acronym (LHD) on some of my iptv playlists and have no clue what it means. I have done some investigating, but I have found no answers. I understand what HD, FHD, and UHD mean, but this LHD has got me stumped.
I dunno…maybe Left Hand Dribble? …naw thats not it 
Linear High Density. A new protocol.
https://wisi.tv/applications/high-density-linear-and-abr-transcoding
Maybe it’s, Live Hard & Die…? 