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A beloved Staten Island teacher is found dead in the home she shared with her husband; an unknown number in her cell phone leads investigators to reveal troubles in her seemingly idyllic life -- and to ultimately unearth her killer.

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

Newlyweds Jon and Carmen take on seasoned couple Ardena and Adam.

Cute siblings Greg and Bianca go after sweet mom and daughter Jillian and Sam.

The Emmy-winning quiz show features a unique answer-and-question format.

Jon Lovitz; Vivica Fox; Howie Mandel; Byron Allen; Caroline Rhea; Jeff Ross.

A daycare owner fights with a mother over disputed childcare fees; the mother says the owner falsified evidence.

A woman accuses her landlord of wrongfully evicting her and her 17 cats from a 40-acre property; another tenant accuses him of reneging on an agreement to pay for remodeling work.

The Emmy-winning quiz show features a unique answer-and-question format.

Stay informed with the latest breaking news and headlines.

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.

In a classic game-show version of "Hangman," contestants solve word puzzles for cash and prizes.

Season 21 lives up to its lucky number with more Golden Buzzers in one night than ever before; it's an evening full of surprises, with a lineup ranging from not one but two dance crews that are not human, to a crossbow stunt duo taking the stage.

Jimmy Fallon and celebrity guest Anthony Anderson pair up with contestants and face off over two games; hosted by Keke Palmer, players must guess secret passwords using only one-word clues for a chance to win up to $25,000.

Stay informed with the latest breaking news and headlines.

Actor Paul Rudd; composer Andrew Lloyd Webber; actor Nicholas Galitzine; comic Ron Taylor.

Actress Anna Faris; singer-songwriter Pink; writer Ann Patchett.

Stay informed with the latest breaking news and headlines.

A daily live broadcast provides current domestic and international news, weather reports and interviews with newsmakers from the worlds of politics, business, media, entertainment and sports. Additionally, specific segments such as Today's Money, Today's Kitchen and Today Throws a Wedding target specific lifestyle issues, and the show's anchors frequently report on special themes from around the g

Jon Lovitz; Vivica Fox; Howie Mandel; Byron Allen; Caroline Rhea; Jeff Ross.

Tina and Gemma plan a joint graduation party for Malcolm and Grover.

Calvin is thrilled when he unexpectedly crosses paths with NFL legend Jerome "The Bus" Bettis; he discovers the hall of fame football player shares a history with Tina; Dave deals with the fallout of a romantic revelation.

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.

Family Bible studies with Pastor Arnold Murray and Pastor Dennis Murray.

Stay informed with the latest breaking news and headlines.

Director Steven Spielberg and actors Emily Blunt, Josh O'Connor and Colman Domingo ("Disclosure Day"); actor Will Forte; Steals and Deals with Jill Martin; style expert Zanna Roberts Rassi.

Fashion expert Jill Martin; actress Camila Mendes; what to watch with Nikki Novak; Today Food with Sunny Anderson.

Social dilemmas; comic Kareem Rahma; surprising perimenopause symptoms with Dr. Sharon Malone; Today Food with Dina Deleasa-Gonsar; author Ann Patchett.

Secrets emerge and a family is torn apart when a cop's wife is shot to death in her bed.

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

Flag football brothers Brandon and Andrew take on sweet cousins Sunny and Tay.

Lots of fun drama, with Kienya and Quantessia taking on roomies Kyle and Dom.

The Emmy-winning quiz show features a unique answer-and-question format.

Jamie Kennedy; Sheryl Underwood; Adam Carolla; Byron Allen; Natasha Leggero; Jay Mohr.

After a labor dispute, a retired officer sues a man for not paying for his advocacy services.

A young woman is accused of running a red light and totaling another teenager's vehicle; police apprehend a passenger who flees the scene of the crime with a gun.

The Emmy-winning quiz show features a unique answer-and-question format.

Stay informed with the latest breaking news and headlines.

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.

In a classic game-show version of "Hangman," contestants solve word puzzles for cash and prizes.

Wolf grapples with being a psych patient at Hudson Oaks and has a startling revelation; a renowned chef comes into Bronx General after a harrowing accident at his restaurant.

A traffic jam forces Violet and Novak to take drastic measures to save a patient; Severide shadows Pascal for a day; Kidd goes the extra mile for Isaiah.

A string of violent robberies across the city digs up one family's secrets; a surprising detail of Voight's past resurfaces.

Stay informed with the latest breaking news and headlines.

Singer Nick Jonas; actress Amy Sedaris; Violet Grohl performs.

Actor Will Forte; actress Alison Brie.