Game of Thrones' second season topped the charts in a rather odd way last year - it held the title as the most pirated TV show of 2012, with over 4 million people pirating each episode. PBS's Mike Rugnetta asks if these pirates are helping or hindering the global success of HBO's fantasy epic.

By the way, how have I only just discovered the Idea Channel!? These videos are pretty neat, and create some interesting topics for discussion. Good job, PBS.