Discovery Communications, Inc. operates as a media company. The company operates through U.S. Networks; International Networks; and Education and Other segments. The company owns and operates television networks under the brands, such as Discovery, TLC, Animal Planet, Investigation Discovery, Science, Velocity, Discovery Family, American Heroes, Destination America, Discovery Life, Oprah Winfrey network, Eurosport, DMAX, and Discovery Kids. Its content spans genres, including survival, exploration, sports, lifestyle, general entertainment, heroes, adventure, crime and investigation, health, and kids. The company also distributes content across various platforms, such as brand-aligned Websites, Web-native networks, on-line streaming, mobile devices, video on demand (VOD), and broadband channels; and operates radio stations and Websites. In addition, it provides access to an online suite of curriculum-based VOD tools, professional development services, digital textbooks, and student assessments through subscriptions for K-12 schools; and publishes hardcopy curriculum-based content. Further, the company operates production studios that develop television content for television service providers. As of December 31, 2014, it operated approximately 330 distribution feeds in 40 languages internationally. The company has a strategic partnership with Dogus Media Group to improve its operations in Turkey. Discovery Communications, Inc. is headquartered in Silver Spring, Maryland.