Co-star Brett Dalton in the "Pilot" for ABC's TV series,...

Co-star Brett Dalton in the "Pilot" for ABC's TV series, "Marvel's Agents of S.H.I.E.L.D.," co-created by Joss Whedon. Credit: AP

Maybe everything is -- at least for ABC -- although for the moment, there's nothing to worry about. "S.H.I.E.L.D." boasts a must-watch pilot that will forcibly remind viewers of what network TV can still do, if budget is a secondary concern. As with "The Avengers," Whedon's ear and sensibilities match the material perfectly -- that high-velocity back-and-forth snark that illuminates character and motive, even when you don't always know exactly what someone just said.

That's a neat trick, but it may also hint at a broader concern for the average viewer. Just how deeply will this dive into the Marvel Universe, a bewildering place, even for experts? The pilot, which can be a thicket in places, indicates dumbing down will not be an option. And if you didn't like "The Avengers," or don't know who the Fantastic Four are (none of whom appear here), or superheroes put you in a deep snooze, then move along: "S.H.I.E.L.D." isn't for you. But if the success of the "Iron Man"/"Avengers" movie franchises is any indication, it should be for plenty of others.

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