After James asks Seth MacFarlane about "Family Guy" being on the air for nearly 20 years, Linda Cardellini reminds Seth that she was once cut from an episode and didn't learn about it until she watched the episode on TV. And James asks Linda about her old hit show "Freaks and Geeks" turning 20 this year.

Friend of the show Edward Norton stops by with no project to promote, just a poem in his back pocket. Watch this extended cut of Stephen's interview with Edward Norton including a performance of a section from Walt Whitman's "Crossing Brooklyn Ferry."

Lisa talks about people still calling her Phoebe, watching “Friends” from start to finish right now, filming her show “The Comeback” on the same stage as “Friends,” acting with her son on the show, and we test how much she has changed by quizzing her on a questionnaire from the Chicago Tribune in 1995.

Kristen got a call from Lorne Michaels, just not THE call. (From "Late Show," air date: 12/20/13)

The Tonight Show counts how many times Ben Carson opens his eyes during a speech he gave explaining why he won't leave the Republican race for president despite trailing badly.

A super magnet is hooked up under a cake, hilarity ensues!

Jenna Ortega surprises one of her top Wednesday cosplayer fans.

Actor Elijah Wood won't confirm or deny rumors that he's set to play Frodo again in an upcoming project, and shares that he and his Middle Earth cast-mates keep in touch via a long-running text chain.

Colin Jost breaks down what makes a great SNL Cold Open and what it’s like to write them before picking his favorite for The Rundown.

Year in and year out, no one brings more glamour or tequila to the Academy Awards than Guillermo and here he is, once again on the red carpet with all the stars!

Tig Notaro doesn't watch TV or movies, so she has a hard time recognizing famous people. That's why she's interviewing sports commentator Rich Eisen so she can figure out who he is. Hopefully, with a little help from some clues and from Amazon Alexa, Tig can crack the case.

Kate Mara talks about the time Martha Stewart crashed her birthday party, what it was like working with her sister Rooney Mara on their first movie together and not being able to guess the ending of her new show Imperfect Women.

Wall Street broker stuck at a car repair shop in the middle of the desert. Aired 05/23/87

Sarah Michelle Gellar talks about throwing a 50th birthday party for her husband Freddie Prinze Jr. and the film Ready or Not 2: Here I Come using 35,000 gallons of blood in the movie before showing off her phone acting skills.

Trey Parker, Matt Stone and Robert Lopez created an obscenity-riddled Broadway musical so funny that even the Mormon Church itself got in on the joke. Keep watching for a performance by Andrew Rannells and the Broadway company of "The Book of Mormon."