Season 4, Episode 12 Steven Pinker

First Aired: May 3, 2013

The Season 4 finale features cognitive scientist Steven Pinker ("The Better Angels of Our Nature"), who discusses the history of violence.

Cast & Details See all »

  • Premiered: February 21, 2009
  • Rating: TV-G
  • Premise: Authors discuss their works. (more)

Show More »

Watch This

I. Marlene King and Troian Bellisario
Troian Bellisario recalls her wildest PLL fan encounters

The Pretty Little Liars star and creator recall their wildest -- and sometimes incredilbly uncomfortable -- encounters with fans