CNN — We still don't quite believe that Joss Whedon doesn't have superpowers, but his admission that even he has limitations does help.
When it comes to production for his new ABC primetime drama, "Marvel's Agents of S.H.I.E.L.D.," Whedon says he's going to do "as much as an executive producer who's also making a movie" -- like "The Avengers" sequel, "Avengers: Age of Ultron" -- is able to.
When it gets down to brass tacks, that means it's highly unlikely that he'll direct another episode after the pilot, which Whedon also co-wrote.
“I’m reading every script, every story, and giving notes and re-writes," he said. "I just can’t be in the room every day."
But Whedon's installed creatives who are on the same page as he is in terms of how to spin the stories from the Marvel movies onto the small screen.
"Marvel's Agents of S.H.I.E.L.D.," which ABC has already ordered to series, will follow Clark Gregg's Agent Coulson as he leads a team of highly trained agents charged with investigating "the new, the strange, and the unknown across the globe" and "protecting the ordinary from the extraordinary."
While the opportunities for movie-to-TV crossover are evident, Whedon is proceeding with caution.
"We don't just want to be an Easter egg farm," he said. "We want people to come back because of these people and not because of some connection to the movie universe. This show has to work for people who aren't going to see those movies and haven't seen those movies."
But if there's one thing Whedon already knows isn't going to happen on "S.H.I.E.L.D.," it's song and dance.
"I'm ruling out a musical," he told reporters.
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