On the bubble

As the TV networks prepare to announce their fall schedules, a few shows are on the bubble...ABC's family drama "Brothers & Sisters," NBC's perennially endangered comic caper "Chuck" and Fox's crime drama "Lie to Me."

Almost certain to be canceled...NBC's heavily publicized "The Event," ABC's superhero drama "No Ordinary Family" and CBS' "The Defenders."

Full details are here, TV fans.