SERIES PREMIERE: The premise of this new series, in essence, is that of a more serious Chuck: a government agent, in this case, is implanted with a chip that gives him instant access to the Internet, and other handy high-tech toys. The cast, though, is top-notch: Josh Holloway, Sawyer on Lost, plays the hero, Marg Helgenberger plays his boss, and Meghan Ory (Red on Once Upon a Time) plays his reluctant but resourceful new handler and protector. The execution of the show, for starters, is slick b