In my all-time favorite episode of Radiolab, "Finding Emilie," a young art student named Emilie Gossiaux gets into a terrible accident while riding her bike and, rendered blind and deaf, is unable to communicate with her loved ones until she makes an incredible breakthrough. Listening to it on my drive home only got me to the middle of the episode, so I sat in my parked car staring at the garage until it was over. I was captivated by the voices of Emilie and her family. I've been an audio convert ever since.