Comcast is a media and technology company. Co.'s segments are: Cable Communications, which provides internet, video, voice, and security and automation services in the United States individually and as bundled services at a discounted rate over its cable distribution system to residential and business customers; NBCUniversal, which includes a portfolio of national cable networks that provide a variety of entertainment, news and information, and sports content, regional sports and news networks, international cable networks, and cable television studio production operations; and Sky, which owns a portfolio of pay television channels that provide entertainment, news, sports and movies.