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