Extras

    Video thumbnail: Finding Your Roots The Irish Factor: Soledad O'Brien

    Finding Your Roots

    The Irish Factor: Soledad O'Brien

    Watch Soledad O'Brien in "The Irish Factor," Finding Your Roots: Season Three.

    The Irish Factor: Soledad O'Brien

    Video thumbnail: Finding Your Roots The Irish Factor: Bill O'Reilly

    Finding Your Roots

    The Irish Factor: Bill O'Reilly

    Watch Bill O'Reilly in "The Irish Factor," Finding Your Roots: Season Three.

    The Irish Factor: Bill O'Reilly

    Video thumbnail: Finding Your Roots The Irish Factor: Bill Maher

    Finding Your Roots

    The Irish Factor: Bill Maher

    Watch Bill Maher in "The Irish Factor," Finding Your Roots: Season Three.

    The Irish Factor: Bill Maher