Why the United States was unprepared for COVID-19, how officials failed and missed the warning signs, and what the country needs to do next to return to normalcy after the COVID-19 pandemic has wreaked havoc on families, communities and the economy.

A look back at the life and legacy of TV pioneer Regis Philbin; Jimmy Kimmel's final television interview with Philbin from March 2020; interviews with Kelly Ripa, Kathie Lee Gifford, Mary Hart and childhood friends.

In 2017, authorities reopen the investigation into the 1983 murder of a young Black man in Georgia, eventually charging two men, despite having no new DNA evidence to prompt the reopening.

The life of disgraced mogul Lou Pearlman, including his role in one of the biggest Ponzi schemes in history, his blimp business, how he got involved in the boy band scene and how he led authorities on an international manhunt.

A woman who was kidnapped as an infant by the serial killer who murdered her mother opens up about learning the truth about her identity when she was 15 years old.

A woman's infatuation with a married man who didn't want to be a father possibly motivated her to shoot her three young children, seriously injuring two and killing one.

New Hampshire teen Abby Hernandez talks about her 2013 abduction, captivity and abuse; also included is an interview with Lauren Munday, the woman who aided Hernandez's release.

In a weekend evening edition of the national network newscast, coverage of domestic and international issues by ABC News correspondents also offer segments on lifestyle topics, human-interest stories, and interviews with participants and observers of current events.

"Dateline" has been a staple of the newsmagazine genre since premiering in 1992. Given how long it's been on the air, the show has an extensive archive of in-depth news stories and investigative journalism. This syndicated version offers viewers another chance to watch some of the show's previous content, serving up real-life mysteries and in-depth investigations from the show's 20-plus years on the air. Cases involving murders and missing people are frequent topics on the series that has won multiple Emmys in the news and documentary category.

Anchored by Lester Holt, "Dateline" is NBC's signature newsmagazine, bringing viewers storytelling at its best by putting the pieces together to present the full picture of real-life events. NBC News correspondents cover compelling stories and issues of the day, ranging from mystery and crime to in-depth investigations and breaking-news events.

Co-anchors report the morning's top headlines from a set in Times Square. The show features a combination of breaking news, interviews, in-depth reporting and weather. The program covers important issues with key figures from around the world and a wide spectrum of topics, including medicine, finance, consumer issues, computer technology, education and gardening.

The oldest and most-watched newsmagazine on television gets the real story on America's most prevalent issues. CBS News correspondents contribute segments to each hourlong episode. Topics range from hard news coverage to politics, lifestyle, pop culture, business, health, and science. The correspondents and contributors include Sharyn Alfonsi, Anderson Cooper, Steve Kroft, Lara Logan, Norah O'Donnell, Scott Pelley, Charlie Rose, Lesley Stahl, Jon Wertheim, Oprah Winfrey and Bill Whitaker.

The half-hour program provides viewers with in-depth reporting on one or more of the major stories in the news, with occasional segments on pop culture. Journalists Juju Chang and Byron Pitts share hosting duties for this late-night program.

Using hidden cameras, host John Quiñones observes and comments on how ordinary people behave when they are confronted with dilemmas that require them either to take action or to walk by and mind their own business. Various scenarios are created that force people to make split-second -- and often surprising -- decisions, and variations of the situation (such as changing the genders, races or clothing of the people involved) are often featured to see if different reactions are elicited. Examples of situations on the show include a waitress being harassed by her boss, and a drunken valet trying to park cars.