Neil Patrick Harris, Omari Hardwick and James Blake pay Late Night a visit. ...

Neil Patrick Harris (Best Time Ever with Neil Patrick Harris (2015)); New York City mayor Bill de Blasio. Also: Panic! at the Disco performs; Abe Laboriel Jr. sits in wit ...

Neil Patrick Harris; Rita Wilson. Also: The Both perform. ...

Brain Games investigates every piece of the memory puzzle, from how we recognize faces to how we can move memories from short-term to long-term storage. ...

Magician David Copperfield and a team of experts test, trick, and fool the brain using an elegant form of attention control. ...

Hack into the ultimate supercomputer--the human brain--as Hollywood filmmakers use color, light, motion, depth and sound to create mind-bending sensory illusions. ...

Guest announcer Kelsey Grammer introduces Neil, who in turn introduces the line-up for the show. This week's Singalong Live is sung to the Backstreet Boys' I Want It That ...

On this Halloween inspired episode, guest announcer Kelly Ripa introduces the line-up for the show and Neil, who sees how observant a self-professed eagle eye is in Someb ...

Guest announcer Reba McEntire introduces the line-up for the show and Neil, who in turn introduces a new segment called The Tweet Is On, which really isn't. This week's S ...

Guest announcer Jack Black introduces the line-up for the show and Neil, while Jack does whatever he can to insert himself into what sounds like a very dangerous end-of-t ...

Guest announcer Shaquille O'Neal introduces the line-up for the show and Neil, who in turn introduces a new show in the Real Housewives franchise. This week's Singalong L ...

Guest announcer Tyler Perry introduces the line-up for the show and Neil. In We Are Family, Neil shows one family in the audience just how much their father loves them by ...

Guest announcer Alec Baldwin introduces the line-up for the show and Neil, who in turn introduces Alec's sidekick for the evening and life. In Get Ready, Neil shows one a ...

Guest announcer Reese Witherspoon introduces the line-up for the show and Neil, who demonstrates how well he knows some of the audience members. In Singalong Live, some a ...

Neil Patrick Harris (How I Met Your Mother (2005)); Craig Robinson (Mr. Robinson (2015)). ...

Neil Patrick Harris (How I Met Your Mother (2005)); Craig Robinson (Mr. Robinson (2015)). ...

Neil Patrick Harris (How I Met Your Mother (2005)); Craig Robinson (Mr. Robinson (2015)). ...

Neil Patrick Harris (How I Met Your Mother (2005)); Craig Robinson (Mr. Robinson (2015)). ...

Actor Neil Patrick Harris; reality-TV star Arie Luyenkyk Jr. (The Bachelor); Jon Pardi performs; ...

Actor Neil Patrick Harris; reality-TV star Arie Luyenkyk Jr. (The Bachelor); Jon Pardi performs; ...

Guest host Neil Patrick Harris; actors Armie Hammer and Timothee Chalamet (Call Me By Your Name); actress Vanessa Kirby (The Crown); wildlife expert Jules Sylvester bring ...

Todd Andrews, the high school basketball player finds out he has HIV-AIDS. Verminous Skumm starts rumors about the disease that turn Todd's schoolmates against him, hopin ...

Academy Awards host Neil Patrick Harris; Gillian Jacobs (Girls (2012)); Anthony Anderson (Black-ish (2014)). Also: Rascal Flatts perform. ...

Two bombings near Valentine's Day result in two deaths with no apparent connections. Brodie finds a way to get a confession from a drug dealer who conned a victim into pl ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

Despite their history, Grace spends a fun evening with Val only to have Will suspect her of stealing. Meanwhile Jack becomes attracted to the leader of Welcome Home-an or ...

While Jonah and crew dig into a schlocky ski-resort disaster flick starring Rock Hudson and Mia Farrow, Kinga Forrester connects with her long-distance lover. ...