Jenny notes in comments that it doesn't seem to make a great deal of sense when I wrote the following: "the lawyers have apparently not banned the commentators from talking about the question I've always wondered about: which elements of [Freakazoid!] and which characters, were holdovers from the original Bruce Timm concept."
To clarify, I don't actually know if there would have been any legal problems with talking about the original concept of Freakazoid!, but sometimes companies have been known to cut stuff out of DVD features that talks about where things came from, or what kind of re-tooling something went through. In the former category, WB cut out all mention of the fact that Pinky and the Brain are caricatures of Eddie Fitzgerald and Tom Minton (several people tried to mention it in the DVD special features, and none of it was allowed in); in the latter category, Disney didn't allow a whole lot of talk about the original version of The Emperor's New Groove (which underwent a similar re-tool to Freakazoid! from serious to silly).
The latter thing isn't really a law thing. It's just that when something got extensively re-tooled, companies sometimes don't want to allow discussion of what it was originally supposed to be. But that's silly; if we like something, we won't like it any less from knowing where it came from. So I'm glad that the F! features do mention the Timm concept and why it was retooled. It doesn't make me like F! any less to say that the Timm idea sounds interesting. Especially since he's never really done anything similar except that one Batman episode.