Marvel may rule the superhero box office, but DC Comics is launching an all-out comic book blitz on television this season.

DC-parent and Time Warner-subsidiary Warner Bros. is betting audiences are hungry for more comic book content. The studio has turned out a string of superhero and horror hits at a time when young audiences are shifting to streaming on-demand video, an ideal home for serialized genre series with loyal fan followings.

During an August conference call, Time Warner CEO Jeffrey Bewkes singled out DC Comics as an example of "how the best [intellectual property] can be monetized across many different platforms both inside and beyond traditional ecosystems."

Marvel has also expanded to the small screen, but its live-action network shows are limited to "Agents of S.H.I.E.L.D." and the midseason replacement series "Agent Carter." Marvel is also rolling out original superhero shows on Netflix.

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Meanwhile, WB's television group sold three new series based on its comic book properties this season, and four more are returning this fall. One series, "Constantine," was canceled last season after it languished in a Friday night time slot on NBC.

Some market watchers worry that audiences will become fatigued as more superheroes make their way to theaters and living rooms. But Warner Bros. has produced a diverse slate of content when it comes to television, said Eric Handler, media and entertainment analyst at MKM Partners.

"If it was all about superheroes in capes jumping around fighting crime and all of the shows were similar, then I would be concerned," he told CNBC. "'Gotham' is a very different show than 'The Flash.'"