Cable networks are television channels that are delivered to viewers through coaxial or fiber-optic cables. Unlike traditional broadcast television, which uses airwaves, cable networks require a subscription service. This allows them to offer a wide variety of programming, including movies, sports, news, and original series. Popular cable networks include HBO, ESPN, and CNN, each catering to different interests and audiences. These networks often provide exclusive content that isn't available on regular TV, making them appealing to many viewers. With the rise of streaming services, some cable networks have also started offering their content online, allowing subscribers to watch shows and movies on-demand. This shift has changed how people consume media, blending traditional cable with modern technology.