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In the Puget Sound, Peter and Dr. Rae witness the urgent struggle of resident orcas facing a critical threat to survival; the journey continues to a remote lagoon in Mexico's coastal desert, where gray whales have staged an extraordinary comeback.

Tottenham (7-9-16) hosts Brighton (12-10-10) at Tottenham Hotspur Stadium. It is a crucial match as the season ends. Tottenham is in 18th, two points above the relegation zone, while Brighton is sitting in 9th and pushing for a top-half finish.

The best moments from the weekend in Premier League action.

From Huntington Bank Field in Cleveland.

From Long Beach Street Circuit in Long Beach, Calif.

Watch retirement planning professional Stewart Willis as he educates and informs those in or near retirement.

Tom Llamas anchors the latest news, going beyond the headlines to see how lives are affected by the world around them.

Watch retirement planning professional Stewart Willis as he educates and informs those in or near retirement.

Dylan Dreyer meets remarkable reptiles and amphibians, like enormous green sea turtles, tiny dancing frogs and a bright blue lizard.

Dr. Pablo, Danielle and Dr. Tania Elliott break down what's really happening inside the body, connecting the dots between teenage hormonal surges and adult stress while also revealing what can be done today to control hormone disruptions.

Tom Llamas anchors the latest news, going beyond the headlines to see how lives are affected by the world around them.

Stay informed with the latest breaking news and headlines.

Watch retirement planning professional Stewart Willis as he educates and informs those in or near retirement.

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.

Live from New York for more than four decades, celebrity hosts join an award-winning ensemble cast to perform comedic sketches, satirical news and digital shorts, alongside popular musical acts; capturing the pop-culture zeitgeist, the show's sketches and segments often go viral the next day. Over the years, cast members have included Jimmy Fallon, Will Ferrell, Tina Fey, Kate McKinnon, Seth Meyer

Details affecting local, regional, statewide and national news events of the day are provided by the 12News Team as well as updates on weather and traffic.

Live from New York for more than four decades, celebrity hosts join an award-winning ensemble cast to perform comedic sketches, satirical news and digital shorts, alongside popular musical acts; capturing the pop-culture zeitgeist, the show's sketches and segments often go viral the next day. Over the years, cast members have included Jimmy Fallon, Will Ferrell, Tina Fey, Kate McKinnon, Seth Meyer

Paid programming.

In this compelling investigation, John Walsh delves into OmegaXL and its natural origins; discover how this innovative supplement can provide relief from joint pain and improve your quality of life, all grounded in extensive research.

Cut up to half the cost of your monthly cell phone bill; same towers, same coverage, but a lot less money; it sounds great but is it too good to be true?; join myth-busting legend Kari Byron as she takes on Big Wireless to save you money.

A look at why Atlantic City is more than a destination -- it's an experience.

Bespoke luxury and quiet comforts.

A Frank Lloyd Wright masterpiece in Detroit; the iconic townhome featured in "Breakfast at Tiffany's.".

Learning how to mush a team of sled dogs; exploring a massive walk-through ice sculpture that grows a little more each night.

Ground and air ambulance bills are higher than ever! Medicare & private insurance may not always cover costs. Imagine getting a bill for thousands of dollars! Protect yourself and let MASA pay ambulance bills your insurance may not.

Helping injured individuals get the compensation they are owed.

Join the Bright Wealth Management team as they discuss common sense retirement planning and achieving financial security in the 21st Century.

Paid programming.

Sharp conversational coverage of the week's news, along with in-depth profiles of the people and personalities shaping American culture, assessing the highs and lows of the week and looking ahead to the next one.

Interviews with public figures and those making news, setting the political agenda and spotlighting the impact Washington decision-making has on Americans.

Conversation with the candidates.

Manchester City (19-7-5) hosts Arsenal (21-7-4) at Etihad Stadium. A City win shrinks the gap to three points with a game in hand, putting the title in its hands. An Arsenal win extends the lead to nine, likely securing their first title since 2004.

The best moments from the weekend in Premier League action.

The AMA Supercross Championship series invades Huntington Bank Field in Cleveland.

Watch retirement planning professional Stewart Willis as he educates and informs those in or near retirement.

Stay informed with the latest breaking news and headlines.

Watch retirement planning professional Stewart Willis as he educates and informs those in or near retirement.

Tom Llamas anchors the latest news, going beyond the headlines to see how lives are affected by the world around them.

Coverage of the latest storylines and news from across the NBA featuring in-depth analysis and highlights.

Eastern Conference First Round, Game 1.

Game 1 of the Western Conference First Round between the San Antonio Spurs and the Portland Trail Blazers takes place at Frost Bank Center. San Antonio won the regular-season series 2-1. Deni Avdija leads Portland with 24.2 points and 6.7 assists.

Local, national and international news coverage.

Sports news.

Before the age of 30, journalist and Emmy-winner Graham Bensinger worked not only for major networks like NBC and ESPN, but he also began his own syndicated interview program that airs weekly across the country. Bensinger chats with some of sports' biggest names, including pro football players Terrell Owens and Tony Romo, professional basketball player Kobe Bryant, boxing champion George Foreman a

Stay informed with the latest breaking news and headlines.

A therapy dog helps its young handler find a happy place; a therapy dog helps its handler with PTSD but has challenges of its own.

Dylan Dreyer journeys through some of Canada's most rugged wilderness to see the life that this incredible environment holds.

Cut up to half the cost of your monthly cell phone bill; same towers, same coverage, but a lot less money; it sounds great but is it too good to be true?; join myth-busting legend Kari Byron as she takes on Big Wireless to save you money.

Local, national and international news coverage.

Interviews with public figures and those making news, setting the political agenda and spotlighting the impact Washington decision-making has on Americans.

This early-morning news covers overnight events, breaking domestic and international news as well as a preview of the day's anticipated events. The program also presents regular reports from the worlds of business, entertainment and sports.

This early-morning news covers overnight events, breaking domestic and international news as well as a preview of the day's anticipated events. The program also presents regular reports from the worlds of business, entertainment and sports.

This early-morning news covers overnight events, breaking domestic and international news as well as a preview of the day's anticipated events. The program also presents regular reports from the worlds of business, entertainment and sports.

Local and regional news coverage.

Local and regional news coverage.

Local and regional news coverage.

Local and regional news coverage.

News headlines, interviews, and stories intended to inform, entertain, inspire and set the agenda each morning for Americans and help viewers with their finances, health and well-being.

A news program intended to inform, entertain, inspire and set the agenda each morning, offering news, weather reports, and interviews with newsmakers from the worlds of politics, business, media, entertainment and sports.

America's feel-good morning show with big stars and sweet surprises; Jenna Bush Hager and Sheinelle Jones host an hour of heartfelt connection, inspirational stories, fun and laughs.

Vincent D'Onofrio talks about Marvel Studios' "Daredevil: Born Again"; Bear Grylls is here; the hosts open up "The Inbox"!

NBC News provides viewers with the latest national and international news; consumer, health and personal finance reporting; up-to-the-minute local news.

Stay informed with the latest breaking news and headlines.

Midday news coverage.

A mother's death initially appears to be a suicide, but when investigators start to interview those closest to her, an evil plot emerges.

Local and regional news coverage.

Tom Llamas anchors the latest news, going beyond the headlines to see how lives are affected by the world around them.

Eastern Conference First Round, Game 2.

Western Conference First Round, Game 2.

Local, national and international news coverage.

Actress Quinta Brunson; actor Darren Criss; actress Taylor Dearden; Thundercat performs.

Actor Henry Winkler; actors Lea Michele, Aaron Tveit and Nicholas Christopher.

Local, national and international news coverage.

Bryce Adams shares with Graham Bensinger how she grew from running a sporting goods business to building a multi-million dollar OnlyFans empire with her ex, Brian; the two discuss how the venture went from fitness posts to adult content.

Ground and air ambulance bills are higher than ever! Medicare & private insurance may not always cover costs. Imagine getting a bill for thousands of dollars! Protect yourself and let MASA pay ambulance bills your insurance may not.

Paid programming.

Reporting of breaking news and developing stories in real time.

This early-morning news covers overnight events, breaking domestic and international news as well as a preview of the day's anticipated events. The program also presents regular reports from the worlds of business, entertainment and sports.

This early-morning news covers overnight events, breaking domestic and international news as well as a preview of the day's anticipated events. The program also presents regular reports from the worlds of business, entertainment and sports.

This early-morning news covers overnight events, breaking domestic and international news as well as a preview of the day's anticipated events. The program also presents regular reports from the worlds of business, entertainment and sports.

Local and regional news coverage.

Local and regional news coverage.

Local and regional news coverage.

Local and regional news coverage.

Actresses Kate Hudson and Brenda Song ("Running Point"); singer-songwriter John Legend; author Dr. Deborah Kenny; Today Food with Eric Ripert.

What to do with one's tax refund with Christine Romans; author Scott Galloway; actors Kate Hudson, Drew Tarver and Scott MacArthur ("Running Point"); actor Steve Schirripa; Today Food with Melissa Ben-Ishay.

Fashion designer Victoria Beckham; singer-songwriter John Legend; author Dr. Deborah Kenny.

Quinta Brunson dishes on ABC's "Abbott Elementary"; Jason Ritter drops by the studio; another edition of "The Inbox"!

NBC News provides viewers with the latest national and international news; consumer, health and personal finance reporting; up-to-the-minute local news.

Stay informed with the latest breaking news and headlines.

Midday news coverage.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

Local and regional news coverage.

Tom Llamas anchors the latest news, going beyond the headlines to see how lives are affected by the world around them.

Western Conference First Round, Game 2.

Western Conference First Round, Game 2.