After the brief screening, which ended in roars and applause from the fans in attendance, Register commented upon the need to break away from recent animated versions of Batman. "We had seen Batman done really well -- I think B:TAS, best animated series ever," said Register. And he said, "I had a really scary lunch with Bruce Timm, and he said, 'Why don't you do a friendlier version of it?'" Register felt that Timm's comments gave him permission to bring a lighter, more upbeat tone to the series. It's in keeping with classic Batman stories from the comics, as Register explained. He said, "it's only in the last ten years that he's been, like, Dracula."
The creators of The Brave and The Bold cite Dick Sprang as inspiration.
via Comic Book Resources