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Sibs battle! Brothers Archith and Ashwin take on sisters Sarah and Tracy.

Friends Alexis and Camille battle brothers Jeremy and Nathan.

When Eve is inspired by her father's patriotism and decides to join the Junior ROTC, Vanessa is concerned.

Mike is so impressed with Mandy's new boyfriend that he offers him a job; Kristin navigates her relationship with Ryan.

After selling a house to Mitch and Cameron's friends, Claire and Phil plan a celebratory dinner; overindulging in drinks leads to over sharing.

Mitchell ruins one of Jay's proudest moments; Phil overhears something about one of his daughters; Gloria accidentally discovers Claire's secret.

The Coopers discuss the possibilities of black holes and alternate universes when Dr. Sturgis comes over for dinner.

Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.

A choir serenades Joel with a custom anthem; a world-record Guitar Hero champion and a professional entertainer with remarkable balancing skills are among 100 contestants competing.

When Martin's parents make a surprise visit, Martin suspects that his father is experiencing a serious health condition; Louisa is made acting principal; Martin and Robert must operate together on Mark.

Leonard decides to run against Sheldon for president of the tenants' association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Jerry is approached by network executives and asked to create a new television show.

Jerry plans to meet a supermodel at an airport lounge; Mr. Pitt tells Elaine he has mentioned her in his will; George tries to prove he isn't racist; Kramer gambles with a Texan.

Sheldon attempts to build a nuclear reactor; a university cocktail party gets heated when Dr. Sturgis' colleague flirts with Meemaw; Georgie is heartbroken when he learns Veronica has a boyfriend.

Calvin and Tina uncover discriminatory processes with their bank's appraiser; Marty asks Trey for fatherly advice on co-parenting with Courtney.

Calvin weighs the pros and cons of making a major life change; Marty turns to Dave for help dealing with a troubling discovery.

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Shop for hand-crafted and Italian-inspired jewelry styles from Arezzo, Italy. Join Elian Schlesinger for opulent looks in bronze layered with luxurious 18kt gold.

JTV is making room for new product with clearance-priced items during a Warehouse Sale.

NewsNation's live national morning newscast.

NewsNation's live national morning newscast.

NewsNation's live national morning newscast.

NewsNation's live national morning newscast.

NewsNation's live national morning newscast.

An MMA fighter accuses a sponsor of giving him a supplement contaminated with steroids, resulting in a suspension that ruined his career.

An artist sues a building owner for painting over a mural of his disgraced uncle; a friend is blamed after a rare cat ran away while she was house sitting.

"Bitter Over a Broken Table.".

Plaintiff sues her former friend for half of a collections bill.

Golfers hit the course at Trump National Golf Club Bedminster for second round LIV action from Bedminster, N.J.

Father and son John and Vince challenge mom and daughter Jana and Selena.

Daughter and mom duo Sydney and Emily oppose sisters Mardia and Marjani.

Mike discovers that Boyd is no longer using the Baxter name; Kristin, Mandy and Eve make a Valentine's Day music video.

The Outdoor Man puts on a skit based on a Wild West Show starring Ed and Eve and directed by Mike; Mandy tries flirting with an oblivious Kyle.

Mitchell feels pressured to make Cameron's birthday extra special; Jay's manliness comes into question; the girls interfere with Phil's leap day plans.

Cameron runs into his estranged ex-clown partner (Bobby Cannavale); another real estate agent (Ellen Barkin) snags a listing that Phil was trying to land; Jay and Gloria are suspicious when Manny makes a new friend.

Missy's first disappointment in love triggers a series of events that leads the Cooper family to the edge of an abyss.

Amy lies about repairs being made to her apartment so she can continue living with Sheldon; Leonard lets Penny decorate Sheldon's old room.

Former contestant Nick DiGiovanni guest judges; the contestants must strike the perfect balance between authenticity and social media appeal.

With only nine contestants remaining, tensions rise and rivalries start to form as the celebrities push themselves to their limits, tackling everything from general knowledge trivia to a game of life-sized human labyrinth.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

Jerry tries to evade a vengeful writer; Kramer agrees to be a witness at a friend's trial; George woos an executive.

George and Jerry are suspected of roughing up Bette Midler in a softball game, giving Jerry's girlfriend, Bette's understudy, a chance to take the stage.