3 killed when NBC LA helicopter crashes; Fed raises interest rates; Growing GOP divide over Iran war; and more on tonight's broadcast.

NBC LA helicopter crashes; Fed raises interest rates; Growing GOP divide over Iran war; and more on tonight's broadcast.

According to national live + same-day big data plus program ratings from Nielsen, ABC World News Tonight averaged 8.462 million total viewers and 1.059 million in the coveted Adults 25-54 demographic ...

CBS Evening News was the only newscast with growth in both measured categories.

NBC Nightly News (titled as NBC Nightly News with Lester Holt for its weeknight broadcasts since June 22, 2015) is the flagship daily evening television news program for NBC News, ...

Only a thousand viewers separate the top two competitors.