A river is a natural watercourse, typically flowing towards an ocean, sea, lake, or another river. It is characterized by a defined channel that carries freshwater, originating from sources such as springs, melting snow, or rain. Rivers play a crucial role in the ecosystem, providing habitats for wildlife, facilitating transportation, and supporting human activities like agriculture and industry. They are also significant in shaping landscapes through erosion and sediment deposition.

"River" is a British crime drama series that aired in 2015, starring Stellan Skarsgård as a detective with a unique psychological condition. The show was designed as a limited series, which means it was intended to have a single season that tells a complete story. Despite its critical acclaim and strong performances, the creators and network did not plan for a second season, leading to its conclusion after just six episodes. The decision was also influenced by the show's specific narrative arc and themes, which were resolved by the end of the first season.

The seven major rivers in the world are: 1. **Amazon** - The largest river by discharge volume, located in South America. 2. **Nile** - Often considered the longest river, flowing through northeastern Africa. 3. **Yangtze** - The longest river in Asia, located in China. 4. **Mississippi-Missouri** - A major river system in North America. 5. **Yenisei** - One of the largest river systems in the world, flowing through Mongolia and Russia. 6. **Yellow River (Huang He)** - A significant river in China, known for its historical importance. 7. **Ob-Irtysh** - A major river system in Siberia, Russia. These rivers are crucial for their ecosystems, cultures, and economies.

The mini-series "River," starring Stellan Skarsgård, is available for streaming on platforms like Amazon Prime Video and BritBox, where you can find all episodes. Additionally, it may be available for purchase or rental on services like Google Play Movies or iTunes. Availability can vary by region, so it’s a good idea to check your local streaming services for access.