Jetix, on ABC Family & Toon Disney
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Okay, let's start with a little backstory. In 1997, FOX purchased The Family Channel, which a year later was renamed Fox Family Channel. Among the things that came to be broadcast on the network was the Fox Kids block. In 2001, Fox Family Channel was purchased by Disney, and it was renamed ABC Family. But even then, Fox Kids shows would continue airing on ABC Family (under the name "Action Block") until February 2004, when the block was rebranded as "Jetix." Also in 2004, Jetix began airing on Toon Disney. ABC Family discontinued the block in August 2006, while Jetix continued to air on Toon Disney until that channel was rebranded as Disney XD in February 2009. I would guess that most (if not all) of what I watched on Jetix, I watched on Toon Disney.

The things I chiefly remember watching were Oban Star-Racers (2006), Pucca (2006-08), Super Robot Monkey Team Hyperforce Go! (2004-06), and W.I.T.C.H. (2004-06).

I may have watched a very little bit of "Daigunder" and "Yin Yang Yo!", and it might have been on Jetix that I checked out a bit of "Digimon" (or it may have been earlier, on Fox Kids). I also think I watched the first episode of "Legend of the Dragon." I probably occasionally watched some reruns of Batman: The Animated Series (originally on Fox Kids), Inspector Gadget (originally in syndication), Superman (originally on Kids' WB), The Tick (originally on Fox Kids), and certainly some reruns of Dungeons & Dragons (originally on CBS) and Mon Colle Knights (originally on Fox Kids). And doubtless I caught bits and pieces of other things that I don't remember now, including reruns of various shows I'd seen before and didn't feel the need to watch reruns of, here. But I'm not really sure. Anyway, I very much doubt there's anything I'm forgetting about that I would have watched with any regularity on Jetix. (Of course tons of other things aired on Jetix in which I had no interest at all.)