Seasons & episodes

TONIGHT: Chairman of the Democratic National Committee, Howard Dean! Plus, Stephen Colbert reports on "Republican Party Chairmen."

TONIGHT: Hanna Rosin! Plus, Jon discusses the President's current agenda.

TONIGHT: Executive Producer of "30 Days," Morgan Spurlock! Plus, Lewis' "Back In Black."

TONIGHT: Author of "God vs. the Gavel," Marci Hamilton! Plus, Ed Helms reports on "The Fountain of Youth."

TONIGHT: Author of "Spanking the Donkey," Matt Taibbi! Plus, "Wide World Quasi Sports."

TONIGHT: Author of "100 People Who Are Screwing Up America," Bernard Goldberg! Plus Stephen Colbert reports on Network Storm Tracker Coverage.

TONIGHT: Newsweek editor, Michael Isikoff! Plus, Rob Corddry reports on "Harry Potter Book Security."

TONIGHT: Washington Post editors, Bob Woodward & Carl Bernstein!

TONIGHT: Star of "Bad News Bears," Billy Bob Thornton! Plus Lewis "Back In" Black.

TONIGHT: Co-Host of "Ring of Fire," Robert F. Kennedy, Jr.! Plus, Rob Corddry and Ed Helms report on the President's Supreme Court nominee.

TONIGHT: Editor of Newsweek International, Fareed Zakaria! Plus, Samantha Bee reports on "Schwarzenegger Pothole."

TONIGHT: Senator Rick Santorum of Pennsylvania! Plus, Rob Corddry reports on Lance Armstrong's recent win of the Tour de France.

TONIGHT: Star of "Must Love Dogs," Diane Lane! Samantha Bee reports on "Gay Nascar. Plus, Lewis Black is back for another "Back In Black" segment.

TONIGHT: Host of "On the Record," Bob Costas! Plus, Jon Stewart reports on the news that Eliot Spitzer, New York State Attorney General, has brought a suit against the music industry regarding Payola - the illegal practice of record companies paying radio stations and disc jockeys to play particular songs.

TONIGHT: Star of "Happy Endings," Maggie Gyllenhaal! Plus, Stephen Colbert with "This Week in God".

TONIGHT: Senator Joe Biden, D-Delaware!

TONIGHT: Author of "The Last True Story I'll Ever Tell," John Crawford! Plus, the latest headlines.

TONIGHT: Anchor of CNN's "American Morning," Miles O'Brien! Plus, Stephen Colbert reports on "Cooter."

TONIGHT: Star of "The 40-Year-Old Virgin," Paul Rudd! Plus, the first installment of "Indecision 2008."

TONIGHT: Star of "The Skeleton Key", Kate Hudson. Plus, Rob Corddry reports on Ethanol.

TONIGHT: Journalist, John Hockenberry! Plus, the latest headlines!

TONIGHT: Star of "Four Brothers," Andre Benjamin! Plus, Stephen Colbert reports on "This Week in God".

TONIGHT: Star of "The 40-Year-Old Virgin," Steve Carell! Plus, the latest headlines.

TONIGHT: Investigative journalist, Seymour Hersh! Plus, Ed Helms visits the Bassmaster Classic Tournament in Pittsburgh to meet the sport's most controversial figure in "Punk Bass Fisherman."