Batman Tas was originally on fox.
Developed by Bruce Timm, Paul Dini, and Mitch Brian, and produced by Warner Bros. Animation, it originally aired on Fox Kids from September 5, 1992, to September 15, 1995, with a total of 85 episodes.
So fox had that and X-men Tas
Fox>>>>> until WB got Superman, Batman, Batman beyond, Static and Pokémon
Developed by Bruce Timm, Paul Dini, and Mitch Brian, and produced by Warner Bros. Animation, it originally aired on Fox Kids from September 5, 1992, to September 15, 1995, with a total of 85 episodes.
So fox had that and X-men Tas
Fox>>>>> until WB got Superman, Batman, Batman beyond, Static and Pokémon