These companies all contributed to Wonder Showzen; USA Cable Entertainment produced the show's first season and the series was initially pitched to USA Network, Augenblick produced the animated portions, PFFR was the primary production company and MTV2 was the show's primary network.
And yes MTV2 didn't have a proper on-screen logo for the show, but they did have a Series Development bump the same year Wonder Showzen debuted.
This is what the show would be like if all four logos were on-screen.
