This wiki covers all aspects of Gatchaman, not just the Battle of the Planets adaptation. And the current theme was created by a bureaucrat, you're only an administrator. I've reverted your changes, you should have discussed it first.
Yes, but I thought as it is a sequel in Japan as Gatchaman II and Gatchaman Fighter, I should make clear that it originally was meant to belong together. As well I never saw the English dub of Eagle Riders, only the Japanese dub. Furthermore a second dub of Gatchaman was known as G-Force. I think it is clear that this is not that easy as with the seasons of Tenkai Knights and other recent anime.