<iframe width="580" height="385" src="https://www.youtube.com/embed/-cN8sJz50Ng?autoplay=1" frameborder="0" allowfullscreen></iframe> <br>In her National Geographic series, "America Inside Out," Katie Couric learned about the world's first sex robot, Harmony. <br><a href="https://www.youtube.com/watch?v=-cN8sJz50Ng">source</a>