NBC Preempts Revolution in Wake of Boston Attack as Nets Expand News Coverage

Boston Marathon AttackABC, CBS and NBC will air hour-long editions of their nightly newscasts devoted to Monday’s terrorist attack at the Boston Marathon, which reportedly resulted in at least two deaths and 60 injuries.

Additionally, NBC confirms an earlier New York Times report that tonight’s original Revolution (10/9c) will be replaced by a Brian Williams-anchored news special on the tragedy.

No primetime changes are planned at ABC, CBS and Fox .