National television refers to broadcast television networks that operate across an entire country, providing programming to a wide audience. These networks typically include major channels that offer news, entertainment, sports, and educational content. National television plays a significant role in shaping public opinion and culture by reaching millions of viewers. In many countries, national television is often funded by a combination of government support and advertising revenue. Examples of national television networks include BBC in the United Kingdom, NBC in the United States, and CBC in Canada. These networks often have a mandate to provide diverse programming that reflects the interests of the national population.