Pawtucket-based Hasbro Inc. and Discovery Communications have announced the closing of Hasbro’s purchase of a 50-percent interest in a joint venture that holds the Discovery Kids Network in the United States. Hasbro and Discovery plan for the joint venture to create a rebranded television network dedicated to high-quality children’s and family entertainment. The rebranded network is scheduled to premiere in late 2010 and will feature content from Hasbro’s entertainment and educational properties, and from Discovery’s award-winning children’s educational programming, as well as programming from third-party producers.