Conan O'Brien, a Harvard Lampoon alumnus, hosts this late-night comedy/talk-show which is often silly and whimsical.

Jimmy Kimmel interviews celebrities.

Opening monologues, sketches, celebrity interviews, and musical performances are commonly featured.

Jimmy Fallon hosts the Tonight Show and interviews celebrities, plays games with them and has a musical or comedic guest perform.

Stephen Colbert took over as host, executive producer and writer of THE LATE SHOW on Tuesday, Sept. 8, 2015. The comedy-variety-talk show is broadcast five nights a week from the Ed Sullivan theater in New York.

Comedian Jimmy Fallon hosts a late-night talk show.

The Late Show with David Letterman is an hour-long weeknight comedy and talk-show broadcast by CBS from the Ed Sullivan Theater on Broadway in New York City.

Seth Meyers hosts a late-night talk show.

Following Craig Ferguson's departure, James Corden became host of The Late Late Show, with its celebrity interviews, music and sketches, as well as new features. And of course, it's all hosted by Tony Award winner James Corden.

A mix of celebrity interviews, musical performers, audience participation games, and segments spotlighting real people with extraordinary stories and talents, hosted by comedienne Ellen DeGeneres.

David Letterman hosted this popular late-night comedy/talk-show. Often, Dave would go on location or to the phone lines to play pranks. Some famous features of the show include the "Top Ten... See full summary »

Making a satire out of the entire Late Night Show concept Scotsman Craig Ferguson hosts his show with a robot skeleton and a "horse" as his sidekicks. The show features the stereotypical parts of a Late Show, but all in their own, raw way.