TV highlights for Sept. 24: 'NCIS,' 'Chicago Fire' return

SERIES PREMIERE: "Marvel's Agents of S.H.I.E.L.D." (ABC at 8 p.m.) is the Joss Whedon comic book series based on the "Avengers" characters. Critic Hank Stuever says the show "launches with a plucky, adventuresome and remarkably non-pretentious pilot episode, but if you haven't been reading Marvel Comics lately (or at all -- Stan Lee first dreamed up a S.H.I.E.L.D. story line in 1965), then the show can feel somewhat exclusionary and, frankly, a little too cornball and cutesy about its own geekin...