Wut? Super-cryogenics, plant monsters, and ressurection pits; aliens, starships, and superhumans; superhumans via genetic engineering and other methods; time travel, robot soliders/mecha; aliens, superhumans, and mutants; aliens, superhumans, other planets, etc.; and presumably many similar for Dragonball. And that's all just off the top of my head for each.
Superhero shows are pretty universally science fiction - Batman or other "street" level heroes maybe not, but even BTAS has Mr. Freeze, Poison Ivy, and Ra's Al Ghul.