Amazon entered a new multi-year licensing agreement with PBS on Wednesday to grab some extra TV shows for its subscription-based on-demand streaming service Prime Instant Video. The deal adds hundreds of new episodes from programs such as NOVA and Masterpiece, as well as a bunch of new PBS KIDS shows such as Caillou, Arthur, Daniels Tiger’s Neighborhood and Dinosaur Train. PBS is also the home of Downton Abbey in the US, the wildly popular period drama created by Julian Fellowes. The expanded licensing agreement means that the third series is now available on Prime Instant Video, and follows a similar deal inked in February this year which ensures all future seasons are exclusive to the service. All of the new children’s programming picked up from PBS KIDS is also being added to Kindle FreeTime Unlimited.