My heart would have skipped a beat if I had seen this team up on TV back in the 70's. I know that Dynomutt and Blue Falcon were somewhat more comedic spins on superheroes, but I tool them very seriously as a kid. They fell under the Hanna-Barbera umbrella so this crossover could have been done. DC's done a bunch of comic books teaming their roster of heroes with the HB characters, but I haven't seen this one yet.