NBC's "Dateline" at 9 pm. plans "reports on the killing of 12 people in Aurora, Colorado during a screening of the new Batman movie."
And from CBS:
CBS EVENING NEWS Anchor and Managing Editor Scott Pelley will broadcast live tonight, July 20, from Aurora, Colo., the site of a movie theater shooting.
Pelley will anchor the CBS EVENING NEWS (6:30-7:00 PM, ET) and a special edition of 48 HOURS (8:00-9:00 PM, ET).
I have not seen a change in Fox's broadcast schedule, but it tends to leave these stories to cable's Fox News Channel, where it and its cable counterparts have been wall to wall on the story.
ABC's plans are described in a previous post.