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Mary gets Pastor Jeff involved when Sheldon isn't invited to Billy's birthday party; George Sr. has male bonding time with Dr. Sturgis.

Sheldon is shocked when a NASA representative at school dismisses his science; he becomes determined to prove him wrong.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Sheldon takes acting lessons from Penny in hope of becoming a better teacher; Koothrappali fantasizes about his friend's girlfriend.

Stay informed with the latest breaking news and headlines.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

Tracing Taylor Swift's path from childhood recordings to global stadium tours, featuring rare early footage and thoughtful commentary from cultural voices, industry figures and longtime fans.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

Charlie must decide between his fiancée, Chelsea, and his former girlfriend, Mia.

Charlie must face his feelings when Rose announces she is moving to London; Alan fudges his online dating profile, only to wind up with a fellow profile-embellisher.

When Calvin takes Dave's suggestion to try a new method of promoting his business, he soon comes to regret it; Gemma recruits Tina to rescue her struggling after-school music program.

When Dave and Gemma face a devastating loss, Calvin and Tina offer emotional support and reflect on a period that tested their own family.

A woman claims an online seller ghosted her; a man runs into contract issues when he tries to sell the furniture used in staging his property.

A man sues his landlord after his motorcycle is crushed; a man slips on ice and falls on a woman's vehicle, damaging it.

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The weekday news magazine takes an in-depth look at topics from politics to personal finance, featuring watchdog reports about government corruption and failures, consumer alerts and health care issues.

Crimes from across the country that have been captured by ordinary people on their smartphones; stories of victims, witnesses, law enforcement and the videographers themselves.

From classic to contemporary, we explore New York interiors.

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Tamsen Fadal interviews celebrities, rising stars and special guests from Broadway to off-Broadway.

Jack and Suzi explore Catalina Island, off the coast of California, and track down a herd of wild bison that have been living there since 1924; they also uncover bats roosting in an old barn, and meet the island's local veterinarian.

Jack and Sue head to Rwanda for an encounter with golden monkeys; getting a taste of the local fishing traditions; visiting a primary school.

Australia: koala; Tasmanian devil; a tour of the Australia Zoo with the Irwin family.

Florida: a turtle hospital rehabilitates the reptiles and releases them back into the wild; animal communication skills at the Dolphin Research Center.

Jack and Suzi explore Costa Rica; encountering a wild jaguar; land of the stray dogs; vipers.

Jack and Suzi meet some mighty meerkats living in California's desert. They also visit a wolf sanctuary dedicated to saving the misunderstood species.

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A tour of historic downtown Sanford, Fla.

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Sheldon invites the entire school to a party for the Nobel Prize announcements; Meemaw learns more about Dr. Sturgis' past; Georgie's desire for cable TV leads to a standoff between him and George Sr.

After Dr. Sturgis experiences a nervous breakdown, Mary worries Sheldon is headed down a similar path; Georgie discovers he has a knack for sales.

Without Dr. Sturgis' university class, Sheldon must find a new way to stay academically challenged; Mary helps Pastor Jeff avoid temptation with his girlfriend.

Sheldon takes matters into his own hands when Meemaw refuses to drive him to a lecture; Georgie tries to impress Veronica with his new business venture.

Sheldon is forced to take a break from science when his new obsession with "The Lord of the Rings" leads to an unhealthy habit; Missy asks George Sr. to teach her how to play catch.

Chelsea sets Alan up on a blind date with Rose.

A pre-race lead-up to NASCAR racing.

From Sonoma Raceway in Sonoma, Calif.

Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

Raj struggles with guilt when he dates two women at once; Penny has a chance to play a part in a cheesy movie; Sheldon is torn between two gaming systems.

Monica and Ross share their feelings about death and their grandmother.

Monica and Ross cook Thanksgiving dinner for themselves, but everyone else shows up.

Documenting the life and career of the prolific actor through family photos, home movies and untold stories; includes interviews with the people who were closest to him.

The members of the 118 make calls to save a bridezilla at a disastrous wedding; Hen plays medical detective when her mother falls ill; Eddie and Christopher receive a visit from Carla; Athena uncovers a secret Bobby has been hiding.

Athena and the 118 are on high alert when a sniper is targeting members of the LAFD; Maddie makes a life decision.

During a trip to Bangkok to train alongside Thailand's premiere S.W.A.T. team, Hondo and his former military buddy stumble upon a wide-ranging heroin operation with ties to Los Angeles and find themselves on the run from a powerful drug kingpin.

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Religious programming.

Perry Stone deals with in-depth prophetic and practical studies of the word of God.

Featuring a variety of politicians and newsmakers discussing the latest political news from the nation's capital.

Financial planning experts share how your income gets taxed in retirement. Plus, the retirement tax savings strategies that could save you hundreds of thousands of dollars!

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

Beaches around the world.

An in-depth look at topics from politics to personal finance, featuring watchdog reports about government corruption and failures, consumer alerts and health care issues.

From classic to contemporary, we explore New York interiors.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

When Rachel tells her friends about Barry and Mindy's impending divorce, the others speculate how their lives could have turned out if they had chosen different paths.

Carol and Ross decide to spice up their marriage; Rachel goes to Joey's and kisses him; Rachel catches Barry cheating.

When Dave discovers Calvin hasn't seen a physician in nearly a decade, he insists that he schedule a physical; Calvin gets more than he bargained for when Dr. Fisher insists he undergo a routine colonoscopy.

When Calvin discovers a member of the community plans to sell to greedy developers, he vows to find a buyer closer to home instead; the Butlers and Johnsons soon realize that the dilapidated property will require more work than they expected.

When Charlie's jealousy threatens his relationship with Chelsea, he turns to Alan for help in becoming a better person; will he be able to pull it off?

Charlie returns from Las Vegas with the woman he married there, who is not Chelsea; Chelsea's dad arrives in town on a visit with his boyfriend.

Uncle Marvin reveals he has become a stockbroker and convinces Barry and his friends to invest their money with him; Beverly invites 50 people over for a Thanksgiving potluck instead of cooking for the family.

Murray takes Adam out for a driving lesson, and they learn something new about Pops in the process; Erica struggles with making friends.

Mike and Vanessa each try to influence Jen's career path; Kristin uses her pregnancy to her advantage with Outdoor Man customers.

Vanessa turns to Mike and Carol for advice on her State Assembly campaign; Kyle is overcome with anxiety when Ed gifts him an expensive watch.

Sheldon tries to convince Dr. Sturgis to return to the university; Georgie upsets the family when he makes a life-changing decision.

Meemaw opens a secret gambling room; Sheldon, Missy and Georgie adapt to new living arrangements.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to find Amy a new man on a dating app.

NXT's summertime classic returns.

When a new designer drug hits the streets, Officer Nolan and the team have a Halloween they won't soon forget; Lucy questions whether her apartment building might be haunted.