"Dateline" is airing a special episode about Tanna Togstad and Tim Mumbrue. Here's everything you need to know to watch, live ...

True-crime series "Dateline NBC" will explore the stabbing deaths of Tanna Togstad and Tim Mumbrue in rural Waupaca County.

“Dateline NBC” returns tonight, Friday, September 26, at 9 p.m. Eastern, marking a historic milestone: its 3,000th episode. The show is available to watch on multiple streaming platforms today.

NBC’s long-running newsmagazine “Dateline” finished its 33rd season with an across-the-board ratings win, beating its ABC rival “20/20” for the first time in six years in a season that saw ...