I can't find an announcement about their show starting, but Mike Bridges from Greyhawkery sang their praises back in November:
Mike Bridges on Greyhawkery wrote:Return to Greyhawk on Twitch
Welcome again fans of Greyhawk! This week I am promoting a new venue of Greyhawk entertainment on Twitch called Return to Greyhawk. This is a live D&D 5E campaign and I'm jazzed about this particular channel given the rise in popularity of streaming D&D tabletop groups, mainly because Return is the first I'm aware of actively presenting themselves as a Greyhawk game.
I watched most of their first session last night and it was everything you'd expect in a tense, hard fought D&D adventure (no spoilers), but I went back and re-watched their opening video to episode one and it's AMAZING! Please watch this if nothing else, it's a lovingly crafted intro to a new campaign; you won't be disappointed in the overview it gives to the World of Greyhawk setting.
Here is the cast of characters:
Alessa Amodovar (Human Wizard) played by May / @liqquidfire
Luciano Venturi (Human Cleric of Olidammara) played by Travis / @binaryfyre
Elara Kelm (Elven Rogue) played by Dani / @ImperialScum
Kallic Kelm (Hal-elf Ranger) played by Michael / @LoserMLW
Nilly Belovar (Half-elf Bard) played by Bree / @npcbree
Merrick Saewolf (Human Bloodhunter) played by Josh / @WingedHorizon
and Dungeon Mastered by DMShane / @MageandSage
After the first session, the cast gave away a prize to one lucky viewer, a copy of the classic module Mordenkainen's Fantastic Adventure. Sadly I didn't win this prize (already own it) but I will be back for more. For those wishing to join me, expect the party to be back in action, live on Sundays 7pm to 11pm (est). Carry on, Greyhawk!
Here is the Return to Greyhawk page on Twitch, so you can watch new shows as they are live-streamed. And here is the Return to Greyhawk page on YouTube so you can catch up with the earlier episodes.
From what I can tell this show started off on Sundays, but is moving to Mondays from the start of next year.