High-definition video streaming over the internet is enabled by protocols and technologies such as HTTP Live Streaming (HLS) and Dynamic Adaptive Streaming over HTTP (DASH). These technologies allow for the delivery of high-quality video content by adjusting the quality based on the user’s internet speed and device capabilities. This adaptive quality helps alleviate buffering issues and provides a smoother viewing experience. High-definition streaming is crucial for platforms like Netflix and YouTube, where users expect clear and uninterrupted playback of their favorite shows, movies, and videos.