The Legion Of Doom ... talk

[The Toyroom]

Apparently HB intended to have the LOD led by Dr. Sivana and Captain Marvel was going to join the SF that season! Joker and Catwoman were in instead of Cheetah and Riddler. Filmation had the animated rights to many Batman villains (as you point out) and Shazam, while HB somehow got the live action rights to the big red cheese (see the Legends of the Super Heroes specials...or better yet, don't.)

Captain Marvel would've been interesting. I still wonder if we would have gotten the ethnic trio of Samurai, Apache Chief and Black Vulcan if H-B was able to nail down the rights to more DC heroes. Black Vulcan was a short-pants substitute for Black Lightning (I think because of issues with BL's creator Tony Isabella)...but it would've been cool to see maybe The Atom or Green Arrow or Plastic Man added to the mix instead (all 3 having guest-starred on earlier seasons of the Super Friends).

And I do remember seeing pics of the Alex Toth Catwoman style guide for the LOD...if only they were able to use her. From what I recall, the costume was much more loyal to the DC version than the one that Filmation ended up using.