Sonic used to offer mbone connectivity (including BBC channels) back when they were an internet service provider and not a web provider. It was pretty nifty but never very user friendly to set up.
I wanna say a special welcome to everyone that's, uh, climbed into the
Internet tonight and, uh, has got into the M-bone. And I hope it doesn't
all collapse.
The article also indicates Internet Multicasting's "Geek of the Week", there's an archive at: https://town.hall.org/radio/Geek/ Transcripts available at http://opentranscripts.org/sources/geek-of-the-week/