People like to shit on certain anime for their filler episodes, but really, Pokemon was a collection of practically ONLY filler episodes. Rinse, repeat. Nothing significant happened for a good 90-95% of the time.
Hey! Arnold in general has a clove of very interestingly developed characters who are also worth trying to understand. But even with the colourful cast of characters, there’s no denying that Helga is the most complicated one.