Studio 42 with Bob Costas (2009)

Each week a group of four famous faces go toe to toe in testing their general knowledge skills in a variety of entertaining games.

Late Night with Jimmy Fallon is an American late-night talk show airing weeknights at 12:35 am Eastern/11:35 pm Central on NBC in the United States. The hour-long show premiered on March 2, 2009, and is hosted by actor, comedian and performer Jimmy Fallon, an alumnus of Saturday Night Live. Hip hop/neo soul band The Roots serve as the show's house band, and Steve Higgins is the show's announcer. The third incarnation of the Late Night franchise originated by David Letterman, the program originates from NBC Studio 6B in the GE Building at 30 Rockefeller Center in New York City. The show typically opens with a brief monologue from Fallon, followed by a comedy "desk piece," as well as prerecorded segments and audience competitions. The next segment is devoted to a celebrity interview, with guests ranging from actors and musicians to media personalities and political figures. The show then closes with either a musical or comedy performance. The show frequently employs digital media into its comedy, which has become crucial to its success. Fallon has been appointed to become the next host of The Tonight Show, where he will succeed the current host Jay Leno at the conclusion of the 2014 Winter Olympics, with fellow SNL alum Seth Meyers slated to replace Fallon.

Jonathan Ross's take on current topics of conversation, guest interviews and live music from both a guest music group and the house band.

Host Zach Galifianakis conducts comical celebrity interviews sitting with his guests between two potted ferns on a sparse set, in the awkward style of low-budget community access cable channels.

Host Chris Hardwick discusses episodes of the AMC television series The Walking Dead with guests, including celebrity fans, cast members, and crew from the series.

Each week Bill Maher surrounds himself with a panel of guests which include politicians, actors, comedians, musicians and the like to discuss what's going on in the world.

A late night television talk show hosted by Conan O'Brien.

The show with hot questions and even hotter wings invites a famous guest over to eat and then interviews them while they're struggling through the heat.

The Ed Sullivan Show is an American TV variety show that originally ran on CBS from Sunday June 20, 1948 to Sunday June 6, 1971, and was hosted by New York entertainment columnist Ed Sullivan. It was replaced in September 1971 by the CBS Sunday Night Movie, which ran only one season and was eventually replaced by other shows. In 2002, The Ed Sullivan Show was ranked #15 on TV Guide's 50 Greatest TV Shows of All Time.

Late Night with David Letterman is a nightly hour-long comedy talk show on NBC that was created and hosted by David Letterman. It premiered in 1982 as the first incarnation of the Late Night franchise and went off the air in 1993, after Letterman left NBC and moved to Late Show on CBS. Late Night with Conan O'Brien then filled the time slot. As of March 2, 2009, the slot has been filled by Late Night with Jimmy Fallon. It will be filled by Seth Meyers in the spring of 2014, after Fallon becomes host of The Tonight Show.