The technology that allows for the streaming of high-definition video content includes various protocols and platforms, notably Content Delivery Networks (CDNs) and adaptive bitrate streaming. CDNs distribute video files across multiple servers, ensuring fast delivery to end-users and reducing latency. Adaptive bitrate streaming dynamically adjusts video quality based on the viewer's internet connection and device capabilities, providing a smoother viewing experience. These technologies enable platforms like Netflix and YouTube to deliver seamless high-definition content to millions of viewers simultaneously.