Back in the day, SatAM cartoons didn't have much in the way of continuity. Each series stood alone, with each episode a done-in-one, and few, if any, storylines that lasted more than 2 episodes. In essence, the idea was to keep things as simple as possible for the audience. Hanna-Barbera experimented with the 6 "2nd season" episodes of Space Ghost that aired to start the 1967-8 season. All that did was establish to the audience the new series the studio was putting out to complement SG, which would remain in reruns for the rest of the season. A marketing tool was what it really amounted to, not much more. Filmation adopted the cliffhanger-formatted serial system when Flash Gordon debuted on NBC around 1979 or 1980. Flash got a 2nd season, but it was back to more "traditional" episodic fare. But what if you could do crossovers with characters already familiar with each other? The ignorance of studio and/or network heads prevented the uniting of ABC's 2 SatAM franchises in 1979, Super Friends & Scooby-Doo. 7 years earlier, Batman & Robin guest-starred in 2 episodes of the New Scooby-Doo Movies on CBS, which marked the end---at the time---of DC Comics characters appearing on CBS' SatAM lineup (the live-action Shazam! came along 2 years later), as ABC picked up the Super Friends for the 1973-4 season. ABC had contributed to this in a sense, with Superman & Wonder Woman appearing on Filmation/Paramount's Brady Kids, but with H-B now holding the license to the DCU characters....! (Of course, CBS & Filmation got around that with the New Adventures of Batman, beginning in February 1977.) It's now 1979. Scooby moved to ABC himself in '76, and went straight into a team-up with his new pal, Dynomutt. Nephew Scrappy was about to be introduced, but what if the network decided to break the familiar Scooby format, and have Scooby meet Batman one more time, but this time with the rest of the SF? Forget the faux ghosts & monsters that Scooby & Mystery Inc. were accustomed to fighting. They'd already met Joker & Penguin, but a real test of their crime-solving skills would actually move them into the big leagues, shall we say. My idea was this: A gang of crooks frame first Batman & Robin, then Superman, Aquaman, & Wonder Woman for a series of crimes in Gotham City. Coincidentally, the Mystery Inc. team is passing through Gotham, and happen to see the faux Dynamic Duo leaving the scene of one job, though they don't realize this until they happen across the victim, a bank manager. Understandably confused, Fred offers to help the police, and after an inevitable, chance encounter with the phony heroes, Fred & Velma trap the Dynamic Duo. As it happens, Scooby is able to clear Batman & Robin because he picked up the scent of the fakes and doesn't get a match when the Masked Manhunters are caught. Fred & Daphne apologize profusely. Having learned of their teammates being in a similar dilemma, Batman decides to bring the gang to the Hall of Justice. There, Mystery Inc. is really starstruck, meeting Superman & Wonder Woman in particular. Batman hatches a plan to capture the real thieves. I'm going to leave it up to you to try to guess where this is going (and where the Wonder Twins play a role, if any).