![Spark from CBC Radio show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/020/138/small/cbc-radio-spark.jpg)
Summary: Hans Raffauf and Bill St. Arnaud talk social solar-power gadget chargers. Marie-Jose Monpetit on the present and future of social TV. Nora Young visits a telepresence art exhibit. Amanda Lenhart on a new study about teens and social media. And Jon Kalish