Sorry Ambaryerno, but thats not actually totally correct. In the dictionary definition (which is what I was using) all serialized means is that its published or broadcast in regular installments (monthly, bi-weekly etcetera). In television or radio its a show that has a continuing plot that unfolds in a sequential episode-by-episode fashion.
And while it is increasingly more common for some works to have overarching plots and dramatic changes its not implicit in the definition. In fact frequently in some serials at the end of the arc everything returns to the status quo, or the illusion of change is given but genuine plot progress is not a necessary component.
American Superhero Comics like Marvel and DC are totally in keeping with either definition, but in both of the big 2 the Status Quo is king. Sooner or later a writer or editorial is going to reset the clock.