W2W2nite 7/4/24: Hulu/MAX
Episode 1
‘A new world’ — After going on a rampage with her partner-in-crime, The Joker, Harley Quinn is sent straight to Belle Reve Penitentiary.
Episode 2
Harley Quinn, Deadshot, Peacemaker, Clayface and King Shark find themselves in a new world of swords and sorcery, known as an ‘ISEKAI.’
Episode 3
Harley Quinn and the Suicide Squad strike a deal with Queen Aldora of the Kingdom to deactivate the bombs in their necks.
I'm pretty skeptical that this is really "the first animated sitcom on X"; I'd have a hard time believing that someone else hasn't posted animated sitcom-esque shorts at some point.