Time Warner Cable (NYSE: TWC) (formerly Warner Cable Communications) is an American national cable television company that operates in 27 states and has 31 operating divisions. Its corporate headquarters are located in Stamford, Connecticut, and has other corporate offices in Charlotte, North Carolina; Herndon, Virginia; and Denver, Colorado.Time Warner owns a majority of voting shares in the company, thus controlling it. On April 30, 2008 Time Warner announced that it will completely split with Time Warner Cable during the fourth quarter of 2008, spinning off its 84 percent stake to shareholders.

The company was honored at the 2008 Technology & Engineering Emmy Awards for development of interactive Video-on-Demand infrastructure and signaling, leading to large scale VOD implementations.

2.www.comcastadvantage.com

Comcast Corporation (NASDAQ: CMCSA) is the largest cable television company and the second largest Internet service provider in the United States

Comcast also has a variety network known as CN8, or the Comcast Network, available exclusively to Comcast and Cablevision subscribers. The channel shows news, sports, and entertainment and places emphasis in Philadelphia, New England, and the Baltimore/Washington, D.C. areas, though the channel is also available in New York, Pittsburgh, and Richmond. In August 2004, Comcast started a channel called CET (Comcast Entertainment Television). It is only available to Colorado Comcast subscribers. It focuses on Life in Colorado. It also carries some NHL & NBA Games when Altitude Sports & Entertainment is carrying the NBA or NHL. In January 2006, CET became the primary channel for Colorado's Emergency Alert System in the Denver Metro Area.

Presently, Comcast serves a total of 24.2 million cable customers, 14.7 million digital cable customers, 12.9 million high-speed internet customers, and 4.1 million voice customers.

3.www.Charter.com

Charter Communications NASDAQ: CHTR is an American company providing cable television, high-speed Internet, and telephone services to more than 5.7 million customers in 29 states. It is the third-largest publicly traded cable operator in the U.S., behind Comcast and Time Warner Cable.
Charter-owned call centers are located in St. Louis, Missouri (telephone service support center), Greenville, South Carolina, Vancouver, Washington, Fond du Lac, Wisconsin, Walker, Michigan, Rochester, Minnesota, Worcester, Massachusetts and Louisville, Kentucky (the largest call center enterprise-wide) with Heathrow, Florida handling the bulk of video, high-speed data, and telephone billing and customer service contacts. Each of the remaining centers are becoming increasingly specialized for particular lines of service or customer issues. In contrast, in the fourth quarter of 2007, Louisville call-center employees, who had been handling callers with Internet issues, were told to prepare for cross-training in telephone and video support. In the first quarter of 2008, Louisville call-center employees were offered the opportunity to join into the already existent company directive for Day of Service customer contact thus adding to the already growing, Louisville Center of Excellence.