4x39 - Dean Kamen

March 20, 2008

4x40 - Eric Alterman, Michael Reynolds

March 31, 2008

Tonight Stephen welcomes professor of English and journalism and author of Why We're Liberals: A Political Handbook for Post-Bush America, Eric Alterman.

4x41 - Van Jones

April 1, 2008

Tonight Stephen welcomes the co-founder of the Ella Baker Center for Human Rights, Van Jones.

4x42 - R.E.M.

April 2, 2008

Tonight Stephen welcomes classic American rock band R.E.M. to talk about their new album, "Accelerate".

4x43 - Clay Shirky

April 3, 2008

Tonight Stephen welcomes telecommunications professor and author of Here Comes Everybody: The Power of Organizing without Organizations, Clay Shirky.

4x44 - Trevor Paglen, Jesse Ventura

April 7, 2008

Tonight Stephen welcomes former pro wrestler and Governor of Minnesota and author of Don't Start the Revolution Without Me!, Jesse Ventura. Also, Stephen talks with Trevor Paglen about the supposed shoulder patches worn by black ops members.

4x45 - Madeline Albright

April 8, 2008

Tonight Stephen welcomes former Clinton Secretary of State and author of Memo to the President Elect: How We Can Restore America's Reputation and Leadership, Madeline Albright.

4x46 - Jeff Gore

April 9, 2008

Tonight Stephen welcomes the founder of Citizens for Retiring the Penny, Jeff Gore.

4x47 - Robin Wright

April 10, 2008

Tonight Stephen welcomes journalist (specializing in the Middle East) and author of Dreams and Shadows: The Future of the Middle East, Robin Wright.

4x48 - John Legend, Mayor Michael Nutter, Chris Matthews

April 14, 2008

Tonight Stephen welcomes the host of Hardball, Chris Matthews.

4x49 - Michelle Obama, The Roots

April 15, 2008

Tonight Stephen welcomes Grammy Award winning musical group The Roots.

4x50 - Philadelphia Eagles Cheerleaders, Gov. Ed Rendell

April 16, 2008

Tonight Stephen welcomes Pennsylvania's Governor, Ed Rendell.

4x51 - Hillary Clinton, Patrick Murphy, John Edwards, Barack Obama

April 17, 2008

Tonight Stephen welcomes Pennsylvania Congressman Rep. Patrick Murphy.

4x52 - Fr. James Martin, Sen. Bernie Sanders

April 21, 2008

Tonight Stephen welcomes Vermont Congressman Rep. Bernie Sanders.

4x53 - Susan Jacoby

April 22, 2008

Tonight Stephen welcomes journalist and author of The Age of American Unreason, Susan Jacoby.

4x54 - Mitch Albom

April 23, 2008

Tonight Stephen welcomes radio host and author of For One More Day, Mitch Albom.

4x55 - Maria Shriver

April 24, 2008

Tonight Stephen welcomes journalist, California's First Lady and author of Just Who Will You Be?: Big Question, Little Book. Answers Within, Maria Shriver.

4x56 - Feist

April 28, 2008

Tonight Stephen welcomes musician Feist.

4x57 - Anne Lamott

April 29, 2008

Tonight Stephen welcomes political activist and author of Grace (Eventually): Thoughts on Faith, Anne Lamott.

4x58 - Donna Brazile, Noah Feldman

April 30, 2008

Tonight Stephen welcomes law professor at Harvard University and author of The Fall and Rise of the Islamic State, Noah Feldman.

4x59 - James Kunstler

May 1, 2008

Tonight Stephen welcomes social critic and author of World Made by Hand, James Kunstler.

4x60 - Carl Hiaasen

May 5, 2008

Tonight Stephen welcomes journalist and author of The Downhill Lie: A Hacker's Return to a Ruinous Sport, Carl Hiaasen.

4x61 - Nathan Gunn

May 6, 2008

Tonight Stephen welcomes opera singer Nathan Gunn.

4x62 - Hasan Elahi, George Johnson

May 7, 2008

Tonight Stephen welcomes science writer and author of The Ten Most Beautiful Experiments, George Johnson.

4x63 - Arianna Huffington

May 8, 2008

Tonight Stephen welcomes the editor in chief of the Huffington Post and author of Right Is Wrong: How the Lunatic Fringe Hijacked America, Shredded the Constitution, and Made Us All Less Safe, Arianna Huffington.

4x64 - Dr. Mehmet Oz

May 12, 2008

Tonight Stephen welcomes the co-author of You: Staying Young: The Owner's Manual for Extending Your Warranty, Dr. Mehmet Oz.

4x65 - Jennifer Hooper McCarty

May 13, 2008

Tonight Stephen welcomes the co-author of What Really Sank the Titanic: New Forensic Discoveries, Jennifer McCarty.

4x66 - Laura Dern, Grover Norquist

May 14, 2008

Tonight Stephen welcomes the president of Americans for Tax Reform and author of Leave Us Alone: Getting the Government's Hands Off Our Money, Our Guns, Our Lives, Grover Norquist.

4x67 - Andrei Cherny

May 15, 2008

Tonight Stephen welcomes journalist and author of The Candy Bombers: The Untold Story of the Berlin Airlift and America's Finest Hour, Andrei Cherny.

4x68 - Tony Perkins, Brian Greene

May 27, 2008

4x69 - Sen. Claire McCaskill

May 28, 2008

Tonight Stephen welcomes Missouri Senator Claire McCaskill.

4x70 - Tad Devine, David Sirota

May 29, 2008

Tonight Stephen welcomes journalist and author of The Uprising: An Unauthorized Tour of the Populist Revolt Scaring Wall Street and Washington, David Sirota.

4x71 - Jon Paskowitz

June 2, 2008

Tonight Stephen welcomes the co-producer of the movie Surf Wise, Jon Paskowitz.

4x72 - George Will

June 3, 2008

Tonight Stephen welcomes political commentator and author of One Man's America: The Pleasures and Provocations of Our Singular Nation, George Will.

4x73 - Rep. Bob Barr, Salman Rushdie

June 4, 2008

Tonight Stephen welcomes Oklahoma Representative and Libertarian Presidential candidate, Bob Barr.

4x74 - Pat Buchanan

June 5, 2008

Tonight Stephen welcomes conservative political commentator and author of Churchill, Hitler, and "The Unnecessary War": How Britain Lost Its Empire and the West Lost the World, Pat Buchanan

4x75 - Phil Weiss

June 9, 2008

Tonight Stephen welcomes New York columnist Phil Weiss.

4x76 - Alan Rabinowitz

June 10, 2008

Tonight Stephen welcomes wildlife scientist and author of Life in the Valley of Death: The Fight to Save Tigers in a Land of Guns, Gold, and Greed, Alan Rabinowitz.

4x77 - David Hajdu

June 11, 2008

Tonight Stephen welcomes journalist and author of The Ten-Cent Plague: The Great Comic-Book Scare and How It Changed America, David Hajdu.

4x78 - Winona LaDuke, Dixon Despommier

June 12, 2008

Tonight Stephen welcomes professor of environmental health sciences at Columbia University, Dixon Despommier.

4x79 - Kenneth Miller

June 16, 2008

Tonight Stephen talks with biologist and author of Only a Theory: Evolution and the Battle for America's Soul, Kenneth Miller.

4x80 - Neal Katyal, Jonathan Zittrain

June 17, 2008

Tonight Stephen welcomes the co-founder of the Berkman Center for Internet Security and author of The Future of the Internet--And How to Stop It, Jonathan Zittrain.

4x81 - Uma Mysorekar, Junot Díaz / Lexicon Artist

June 18, 2008

Tonight Stephen welcomes the author of The Brief Wondrous Life of Oscar Wao, Junot Diaz.

4x82 - Bishop N.T. Wright

June 19, 2008

Tonight Stephen welcomes Bible scholar and author of Surprised by Hope: Rethinking Heaven, the Resurrection, and the Mission of the Church, Bishop N.T. Wright.

4x83 - Barbara Ehrenreich

June 23, 2008

Tonight Stephen welcomes political satirist and author of This Land Is Their Land: Reports from a Divided Nation, Barbara Ehrenriech.

4x84 - Jason Bond, Will Smith

June 24, 2008

Tonight Stephen welcomes rapper, actor and star of Hancock, Will Smith.

4x85 - Paul Goldberger, Neil deGrasse Tyson

June 25, 2008

Tonight Stephen welcomes astrophysicist and director of the Hayden Planetarium, Neil DeGrasse Tyson. Also, Stephen talks with architecture critic and author of Up from Zero: Politics, Architecture, and the Rebuilding of New York, Paul Goldberger.

4x86 - Rep. Robert Wexler

June 26, 2008

4x87 - Lama Surya Das, Daniel C. Esty

July 14, 2008

Tonight Stephen welcomes the head of Yale's Center for Business the Environment, Dan Esty. Also Stephen talks with Lama Surya Das about whether Barack Obama should become a Tibetan Buddhist.

4x88 - Julia E. Sweig, Jason Riley

July 15, 2008

Tonight Stephen welcomes journalist and author of Let Them In: The Case for Open Borders, Jason Riley. Also, Stephen talks with Julia Sweig, author of Friendly Fire about the rise of Venezuela and other South American nations rise out of poverty.

4x90 - Elizabeth Edwards

July 17, 2008

Tonight Stephen welcomes the wife of former Presidential candidate John Edwards and author of Saving Graces: Finding Solace and Strength from Friends and Strangers, Elizabeth Edwards.

4x91 - Sen. Jim Webb

July 21, 2008

Tonight Stephen welcomes Virginia Senator and author of A Time to Fight: Reclaiming a Fair and Just America, Senator Jim Webb.

4x92 - Lucas Conley

July 22, 2008

Tonight Stephen welcomes journalist and author of OBD: Obsessive Branding Disorder: The Illusion of Business and the Business of Illusion, Lucas Conley.

4x93 - Nas

July 23, 2008

Tonight Stephen welcomes rapper Nas who is representing www.colorofchange.org and their petition to FOX to stop racist bias in news.

4x94 - Laurie Goodstein, Garrett Reisman

July 24, 2008

Tonight Stephen welcomes astronaut Garrett Reisman.

4x95 - Toby Keith

July 28, 2008

Tonight Stephen welcomes country music superstar Toby Keith and star of Beer for My Horses, plus Keith performs the song of the same name.

4x96 - Eric Roston

July 29, 2008

Tonight Stephen welcomes Eric Roston, author of The Carbon Age: How Life's Core Element Has Become Civilization's Greatest Threat.

4x97 - Crosby, Stills & Nash

July 30, 2008

Tonight Stephen welcomes legendary musical act Crosby, Stills Nash.

4x98 - Buzz Aldrin

July 31, 2008

Tonight Stephen welcomes former NASA astronaut Buzz Aldrin.

4x99 - Lucas Conley, The Apples in Stereo

August 4, 2008

Tonight Stephen welcomes journalist and author of OBD: Obsessive Branding Disorder: The Illusion of Business and the Business of Illusion, Lucas Conley.

4x100 - David Carr

August 5, 2008

Tonight Stephen welcomes New York Times columnist and author of The Night of the Gun: A Reporter Investigates the Darkest Story of his Life--His Own, David Carr.

4x101 - Jason Bond, Kevin Costner

August 6, 2008

Tonight Stephen welcomes actor/director and star of Swing Vote, Kevin Costner.

4x102 - Devin Gordon, Thomas Frank

August 7, 2008

Tonight Stephen welcomes contributing editor for Harper's and author of The Wrecking Crew: How Conservatives Rule, Thomas Frank.

4x103 - Jorge Ramos

August 11, 2008

Tonight Stephen welcomes the anchor for Univision News and author of The Gift of Time: Letters from a Father, Jorge Ramos.

4x104 - Joey Cheek, Jane Mayer

August 12, 2008

Tonight Stephen welcomes journalist and author of The Dark Side: The Inside Story of How The War on Terror Turned into a War on American Ideals, Jane Mayer.

4x105 - Dick Meyer

August 13, 2008

Tonight Stephen welcomes social critic and author of Why We Hate Us: American Discontent in the New Millennium, Dick Meyer.

4x106 - Bing West

August 14, 2008

Tonight Stephen welcomes combat journalist and author of The Strongest Tribe: War, Politics, and the Endgame in Iraq, Bing West.

4x107 - Rep. Bob Barr, Scott McClellan

August 26, 2008

Tonight Stephen welcomes former White House Press Secretary Scott McClellan, author of What Happened: Inside the Bush White House and Washington's Culture of Deception, Scott McClellan. Also, Stephen talks with former Georgia Representative and Libertarian Presidential candidate Bob Barr about the Libertarian party's "green" efforts.

4x108 - Gov. Mike Huckabee

August 27, 2008

Tonight Stephen welcomes former Arkansas Governor and Republican Presidential candidate, Mike Huckabee.

4x109 - Richard Brookhiser

August 28, 2008

Tonight Stephen welcomes biographer, historian and author of George Washington on Leadership, Richard Brookhiser.

4x110 - John McWhorter

August 29, 2008

Tonight Stephen welcomes political commentator and author of All about the Beat: Why Hip-Hop Can't Save Black America, John McWhorter.

4x111 - Laura D'Andrea Tyson

September 2, 2008

Tonight Stephen welcomes the former director of the National Economic Council, Laura Tyson.

4x112 - Doris Kearns Goodwin

September 3, 2008

4x113 - Adam Brickley, Ron Paul

September 4, 2008

4x114 - Gov. David Paterson

September 5, 2008

4x115 - Peter J. Gomes

September 15, 2008

4x116 - Tyson Slocum, Rick Reilly

September 16, 2008

4x117 - Robert Lutz

September 17, 2008

4x118 - Maria Bartiromo

September 18, 2008

4x119 - Jackson Browne

September 23, 2008

4x120 - Joe Nocera, Cornel West

September 24, 2008

4x121 - Nick Carr

September 25, 2008

4x122 - Paul Begala

September 29, 2008

4x123 - James Taylor

September 30, 2008

4x124 - Dave Levin

October 1, 2008

4x125 - Stephen Greenblatt, Naomi Klein

October 2, 2008

4x126 - Jim Cramer

October 6, 2008

4x127 - Nate Silver

October 7, 2008

4x128 - Joe Scarborough

October 8, 2008

4x129 - David Gergen, Oliver Stone

October 9, 2008

4x130 - Bethany McLean, Kathleen Parker

October 13, 2008

Stephen offers his investment advice, and Kathleen Parker doesn't think Sarah Palin is ready.

4x131 - Joseph Stiglitz

October 14, 2008

4x132 - Shai Agassi

October 15, 2008

4x133 - Brent Glass, Robert Greenwald

October 16, 2008

Stephen starts by talking about the final presidential debate, praising John McCain, but attacking his references to Joe the Plumber. Stephen then talks about the third anniversary of The Colbert Report and that his portrait has now been accepted by Brent Glass as part of the National Museum of American History. He then interviews Robert Greenwald about his series of anti-McCain commercials on YouTube. Stephen then unveils a new portrait of himself, which features him holding his Emmy.

4x134 - Fareed Zakaria, Wynton Marsalis

October 20, 2008

Stephen begins by talking about Colin Powell endorsing Barack Obama for president. He then interviews Fareed Zakaria about the economic crisis. Stephen presents a new "lower cost" segment based on "Colbert Platinum", "Colbert Aluminum." He talks about Paris, rich people opening various bank accounts in order to protect themselves, and stealth wealth. Finally, Stephen talks to Wynton Marsalis about jazz and together they perform "The Star-Spangled Banner."

4x135 - Michael Farris

October 21, 2008

Stephen begins by talking about Stephen Jr., his adopted eagle son, who was spotted in Oregon. He claims that Stephen Jr. has been supporting John McCain in the state. In "The Wørd," Stephen discusses Acorn and voter fraud, with some votes containing the names of cartoon characters. He claims that cartoon characters should not be allowed to vote. Stephen then examines of God concerning the election, after claims of a battle between God, Allah, Buddah and Hindu (despite the fact Buddah and Hindu are not gods). He plays some reponses from his Atone-Phone. Stephen then interviews Michael Farris about the Patrick Henry College.

4x136 - David Frum

October 22, 2008

4x137 - Jonathan Alter

October 23, 2008

4x138 - Yo-Yo Ma

October 27, 2008

Grammy Award winning cellist Yo-Yo Ma, (Songs of Joy and Peace).

4x139 - Brian Moore, Sherman Alexie

October 28, 2008

Stephen welcomes Sherman Alexie, author of "The Absolutely True Diary of a Part-Time Indian."