16x1 - Paul Giamatti

January 3, 2011

The media calls Barack Obama the "comeback kid," and Paul Giamatti says "rapscallion.

16x2 - Sen. Kirsten Gillibrand

January 4, 2011

Republicans focus on 2010 issues, and Kirsten Gillibrand wants to reform the Senate filibuster rules.

16x3 - Jimmy Wales

January 5, 2011

John McCain gets cranky, and Jimmy Wales imagines Wikipedia's relevance in 500 years.

16x4 - Patton Oswalt

January 6, 2011

Facebook refuses to disclose its financial results, and Patton Oswalt uses a prisoner ghostwriter.

16x5 - Denis Leary

January 10, 2011

John Oliver reports on the Arizona shootings in his PJs, and Denis Leary discusses "Suck on This Year.

16x6 - Colin Firth

January 11, 2011

John Oliver celebrates Verizon's iPhone announcement, and Colin Firth talks about "The King's Speech.

16x7 - Tim Pawlenty

January 12, 2011

Members of Congress introduce gun legislation, and Tim Pawlenty defends Republican rhetoric.

16x8 - Ron Howard

January 13, 2011

John Hodgman makes NASCAR more exciting, and Ron Howard shares his enthusiasm for show business.

16x9 - Peter Bergen

January 17, 2011

Michael Steele steps down as RNC chairman, and Peter Bergen talks about progress in Afghanistan.

16x10 - Neil deGrasse Tyson

January 18, 2011

Jon promises Sarah Palin a classy conversation and reveals his love for Neil deGrasse Tyson.

16x11 - Paul Clemens

January 19, 2011

Glenn Beck appears on the "Today" show, and Paul Clemens discusses blue-collar decline.

16x12 - Kambiz Hosseini & Saman Arbabi

January 20, 2011

Steve Cohen compares Republicans to Nazis, and Kambiz Hosseini and Saman Arbabi call Jon a prophet.

16x13 - Anand Giridharadas

January 24, 2011

Wyatt Cenac dons a parrot suit in Mississippi, and Anand Giridharadas tells Jon the truth.

16x14 - James Franco

January 25, 2011

A reporter searches for homeless talent, and Jon composes an ode to James Franco's Oscar nomination.

16x15 - Jonathan Alter

January 26, 2011

Michele Bachmann looks off camera, and Jonathan Alter examines Obama's plans for the future.

16x16 - T. Boone Pickens

January 27, 2011

Bill O'Reilly defends his Nazi analogies, and T. Boone Pickens wants America on an energy plan.

16x17 - Bill Gates

January 31, 2011

Egyptian forces use American tear gas canisters, and Bill Gates works on curing polio.

16x18 - Michael Steele

February 1, 2011

Conservatives turn into political hypochondriacs, and Michael Steele must prove his identity.

16x19 - Matthew Perry

February 2, 2011

Republicans close the rape loophole, and Matthew Perry talks about his happy friend.

16x20 - Adm. Michael Mullen

February 3, 2011

Justin Bieber switches bodies with Jon, and Mike Mullen talks about the crisis in Egypt.

16x21 - Edward Glaeser

February 14, 2011

16x22 - January Jones

February 15, 2011

16x23 - Brian Williams

February 16, 2011

Anchor and Managing Editor, NBC Nightly News. The award-winning journalist and friend-of-the-show stops by.

16x24 - Ed Gillespie

February 17, 2011

16x25 - Lisa Ling

February 21, 2011

16x26 - Anderson Cooper

February 22, 2011

16x27 - Donald Rumsfeld

February 23, 2011

16x28 - Austan Goolsbee

February 24, 2011

16x29 - Howard Stern

February 28, 2011

CNN anchors take viewer requests, and Howard Stern hopes to talk to Charlie Sheen.

16x31 - Allison Stanger

March 2, 2011

16x32 - Diane Ravitch

March 3, 2011

16x33 - Sen. Rand Paul

March 7, 2011

16x34 - Brian Christian

March 8, 2011

Author Brian Christian ('The Most Human Human: What Talking with Computers Teaches Us About What It Means to Be Alive').

16x35 - Aaron Eckhart

March 9, 2011

From 'Battle: Los Angeles,' actor Aaron Eckhart.

16x36 - Trey Parker & Matt Stone

March 10, 2011

'South Park,' creators Trey Parker and Matt Stone.

16x37 - Sarah Vowell

March 21, 2011

Author, "Unfamiliar Fishes." The author discusses her new book about American colonization of Hawaii in the 1800s.

16x38 - T.J. English

March 22, 2011

The author of "The Savage City" discusses his new book about murder and corruption in New York City during the 1960s and 70s.

16x39 - Richard Lewis

March 23, 2011

16x40 - Bret Baier

March 24, 2011

16x41 - Dr. Mansour O.El-Kikhia

March 28, 2011

Republicans want to lower the corporate tax rate, and Mansour O. El-Kikhia discusses Libya.

16x42 - Miguel Nicoleles

March 29, 2011

Joe Biden works the room at a war speech, and Miguel Nicolelis helps paralyzed people walk again.

16x43 - Jake Gyllenhaal

March 30, 2011

Republicans appeal to their narrow base, and Jake Gyllenhaal considers marrying a stranger.

16x44 - Norm MacDonald

March 31, 2011

CIA operatives might arm Libyan rebels, and Norm Macdonald wants to blow up his stupid high school.

16x45 - Billy Crystal

April 4, 2011

The comedian and actor discusses his role as a vampire in an upcoming Funny Or Die short.

16x46 - Colin Quinn

April 5, 2011

The comedian discusses his one-man Broadway show and special on HBO.

16x47 - Mike Huckabee

April 6, 2011

The former governor of Arkansas discusses his views on government, families and his latest book.

16x48 - Jamie Oliver

April 7, 2011

The chef talks about healthy cooking habits and the upcoming season of his Emmy-winning series.

16x49 - Foo Fighters

April 11, 2011

The rock band visits to perform a song from their latest album.

16x50 - Governor Deval Patrick

April 12, 2011

The governor of Massachusetts discusses his rise from poverty and what gives him hope for America's future.

16x51 - Tracy Morgan

April 13, 2011

The actor and comedian discusses his role in the upcoming animated film.

16x52 - Ricky Gervais

April 14, 2011

The comedian talks about his new HBO special with Jerry Seinfeld, Chris Rock and Louis C.K.

16x53 - Gigi Ibrahim

April 25, 2011

John Oliver highlights royal wedding coverage, and Gigi Ibrahim talks about the Egyptian uprising.

16x54 - Elizabeth Warren

April 26, 2011

Olivia Munn looks into tiger mothering, and Elizabeth Warren wants to protect consumers.

16x55 - Bernie Sanders

April 27, 2011

Obama releases his long-form birth certificate, and Bernie Sanders fights for workers' rights.

16x56 - William Cohan

April 28, 2011

John Oliver talks to British taxpayers about the wedding, and William Cohan discusses Goldman Sachs.

16x57 - Philip K. Howard

May 2, 2011

The U.S. kills Osama bin Laden, and Philip K. Howard explains why the government can't make choices.

16x58 - Rachel Maddow

May 3, 2011

A royal wedding simulation reveals the consummation, and Rachel Maddow discusses Bin Laden's death.

16x59 - David Barton

May 4, 2011

The White House hides the Bin Laden photo, and David Barton discusses religion in the Constitution.

16x60 - Joe Meacham

May 5, 2011

Donald Trump steals the crazy oxygen from Sarah Palin, and Jon Meacham discusses the Civil War.

16x61 - Keira Knightley

May 9, 2011

Jason Jones visits the gayest city in America, and Keira Knightley learns about the Santorum.

16x62 - Will Ferrell

May 10, 2011

Republicans take credit for Bin Laden's death, and Will Ferrell simulates sex with a baseball bat.

16x63 - Albert Brooks

May 11, 2011

Common causes controversy, and Albert Brooks talks about his Kate Middleton obsession.

16x64 - Kristen Wiig

May 12, 2011

Newt Gingrich announces his candidacy on Twitter, and Kristen Wiig talks about "Bridesmaids.

16x65 - Jon Ronson

May 16, 2011

Osama bin Laden's porn stash is discovered, and Jon Ronson talks about psychopaths.

16x66 - Annie Jacobsen

May 17, 2011

Al Madrigal weighs in on immigration reform, and Annie Jacobsen talks about Area 51.

16x67 - Richard Beeman

May 18, 2011

Newt Gingrich outrages Republicans, and Richard Beeman discusses religion in government.

16x68 - Lisa P. Jackson

May 19, 2011

John Hodgman creates a Bin Laden conspiracy theory, and Lisa P. Jackson addresses EPA criticism.

16x69 - Jimmy Fallon

May 31, 2011

Sarah Palin takes a bus tour with her family, and Jimmy Fallon reads a thank you note.

16x70 - Bill Moyers

June 1, 2011

Donald Trump eats his pizza with a fork, and Bill Moyers discusses good journalism.

16x71 - Tim Tebow

June 2, 2011

Eric Cantor wants to justify tornado relief, and Tim Tebow talks about his missionary parents.

16x72 - Maziar Bahari

June 6, 2011

Sarah Palin offers her version of Paul Revere, and Maziar Bahari recounts his Iranian imprisonment.

16x73 - Fareed Zakaria

June 7, 2011

John Oliver promises to mock Anthony Weiner, and Fareed Zakaria discusses American labor.

16x74 - Larry King

June 8, 2011

Anthony Weiner apologizes to Bill Clinton, and Larry King prepares for his European stand-up tour.

16x75 - Howard Wasdin

June 9, 2011

Jon spins the penis wheel, and Howard Wasdin talks about SEAL Team Six.

16x76 - Alex Prud'homme

June 13, 2011

Nancy Pelosi calls on Anthony Weiner to resign, and Alex Prud'homme discusses water pollution.

16x77 - J.J. Abrams

June 14, 2011

Republican hopefuls gather for their second debate, and J.J. Abrams talks about writing for TV.

16x78 - Trey Parker & Matt Stone

June 15, 2011

Barack Obama visits Puerto Rico, and Trey Parker and Matt Stone become the Broadway establishment.

16x79 - Ray Nagin

June 20, 2011

Sam Bee reports on the smoking ban in NYC parks, and Ray Nagin discusses Hurricane Katrina.

16x80 - Cameron Diaz

June 21, 2011

PolitiFact checks Fox News for false statements, and Cameron Diaz removes Jon's stitches.