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Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproved; Bernadette wants to beat Howard in a popular video game.

Dan encounters a surprise visitor who shares some unsolicited advice, leaving him feeling guilty; Darlene welcomes a new employee to Wellman Plastics.

"Scrubs" red-carpet premiere.

Pamela Smart's husband is found murdered; police investigate and discover that Smart is keeping a big secret.

Actress Neve Campbell; TV host Jeff Probst; Olympic gold medalist Chloe Kim stops by.

Up-to-date information on current events and news from around the world, airing in the overnight hours. Its tone is somewhat lighter than a regular news broadcast, though reports are filed from the usual ABC News correspondents. Weather and pop culture stories round out the reports.

Formerly known as "ABC World News This Morning," this newscast from "ABC News" features live reports from Washington, headlines of the day, an ESPN sports package and "MoneyScope," a regular financial news segment.

Stay informed with the latest breaking news and headlines.

Actors Piper Curda and Bobby Moynihan; comic Nate Bargatze; co-authors Michael Lynton and Joshua L. Steiner; American Heart Association Health Report with Dr. Tara Narula; Deals & Steals with Tory Johnson.

Nate Bargatze drops by the studio to talk about ABC's "The Greatest Average American"; Taylor Tomlinson chats with Kelly and Mark; the hosts open up the Inbox!

Guest co-host Amanda Carpenter; actress Neve Campbell.

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

Stay informed with the latest breaking news and headlines.

Actors Piper Curda and Bobby Moynihan; comic Nate Bargatze; Deals & Steals with ory Johnson; ABC Secret Savings with Will Ganss.

Britt and Jason weigh their options; Chase ponders a difficult choice; Dante seeks out Elizabeth; Cody encourages Molly; Gio gets good news.

More from Drew's interview with Catherine Zeta-Jones and her sit-down with Michael and Cameron Douglas.

A Little Bit Extra with Drew, Halle Berry and Kristina Zias, who are celebrating aging by helping a viewer over 50 achieve a glow-up look.

Actor Blair Underwood talks about his new film "Youngblood" and book "A Soldier's Wife: My Mother, the Marvelous Mrs. Marilyn A. Underwood"; Olivia Perkins, whose video of finding out she was accepted into Brown University on a full-ride scholarship recently went viral; after Stephen Bell had a spinal injury that changed his life forever, son Garreth decided to become a physical therapist; hip-hop

Kellyoke Encore: "Carry It Well"; Gabriel Basso; Bunnie Xo; Read Alliance; DIY Drop-In With Shane Duffy; Kashus Culpepper performs.

Stay informed with the latest breaking news and headlines.

Delivering the news that matters most.

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.

John "J.D." Dorian unexpectedly finds himself back at Sacred Heart, reuniting him with new and old faces.

J.D. navigates a new normal; Elliot and Turk clash over the budget.

Contestants compete in challenges and trivia, trying to guess how everyday Americans think and live; one player is crowned the Greatest Average American and gets the chance to win the ultimate grand prize: the average American salary of $67,920.

John "J.D." Dorian unexpectedly finds himself back at Sacred Heart, reuniting him with new and old faces.

J.D. navigates a new normal; Elliot and Turk clash over the budget.

Stay informed with the latest breaking news and headlines.

Actor Jason Bateman; snowboarder Chloe Kim.

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.