Both CBS and NBC have shifted around their programming schedules in the wake of this week's Boston bombings and today's city-wide manhunt for the men responsible.

First, CBS will preempt tonight's episode of Vegas in order to run a special news report on the culprits. It will air tomorrow night at 8 instead.

NBC, meanwhile, has pulled next Thursday's installment of Hannibal because producer Bryan Fuller was concerned that the especially lurid storyline of children-on-children murder would not be appropriate at this time.

The series will air what had been scheduled as Episode 5 instead and air its season finale a week earlier on June 20.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.