Coax for cable TV went digital and provides good performance for HD TV as well as high-speed internet, and is the most deployed in a home, shared-media (TV, Phone, and Internet) connection. But, since the last mile (switching station connectivity to individual homes), is now using fiber, the higher bandwidth allows multiple devices to stream, search, and play simultaneously. This allows higher speed bi-directional communications to connect to in-home or in-building LANs and wireless links such as WiFi.
