The Worst Episodes of Join or Die with Craig Ferguson

Evy Poumpouras, Mark Forward and Regis Philbin talk about the badasses of history.

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Jay Leno, Mark Forward and Howard Bragman

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Courtney Cox, comedian Dan Soder and author/comedian Michael Ian Black debate and discuss history's biggest frenemies.

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Michael Ian Black, Josh Wolf and Jason Biggs channel Robert Stack for a look at famous unsolved mysteries.

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Trace Adkins, Kate Flannery and Lori Greiner talk about great inventions of the past half century.

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Judd Apatow, Kurt Braunohler and Mike Massimino don tin foil hats.

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Mike Massimino, Megan Amram and Larry King talk about the greatest known unexplained phenomena.

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Joel Stein, Jo Koy and Fred Willard discuss the founding fathers.

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Julie Bowen, Dan Levy and Laila Lalami discuss the worst tyrants in history.

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Jack Black, Tymberlee Hill and Stephen Prothero talk about crazy cults.

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Joel Stein, Russell Peters and Michael Sheen talk about history's frauds.

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Jimmy Kimmel, Jen D'Angelo and Howard Bragman discuss history's biggest political blunder.

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Guests Elijah Wood, comedian Bryan Callen and Professor Dan Schnur discuss history's most doomed presidential campaign.

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Derrick Pitts, Thomas Dale and Joel McHale talk about the greatest gangsters to ever have lived.

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Angela Kinsey, Heather McDonald and Joel Stein talk bad boy presidents.

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Dan Riskin, Ian Abramson and Tim Meadows talk about the dumbest mistakes in history.

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John Avlon, Yvette Nicole Brown and Lisa Kudrow talk about big mmoments where people still revolt.

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Chris Hardwick, comic Jordan Carlos and scientist Bob Pflugfelder discuss history's worst medical advice.

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David Eisenbach, Maria Bello and Derek Waters talk medicine.

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Adam Goldberg, Noel Wells and Ty Pennington talk great modern mysteries

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Lars Ulrich, Tom Papa and Alan Light talk about great rock bands,

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