Visit your cable TV provider's website, and click on Channel Lineup or Programming. You can also call your cable provider's customer service department, and ask for a current channel lineup.
Each cable company's channel lineups and channel maps vary from area to area, so input your ZIP code in order to obtain the most appropriate results. Cox, which primarily serves the Southwest, features channel lineup and channel-mapping information at Cox.com under My Connection.
At Xfinity.com, click Upgrade, Programming and Channel Lineup. At ATT.com, click Personal, Digital TV and Channel Lineup. The website may detect your location or you may have to input your ZIP code.
Channel lineups for Cablevision customers are located at Optimum.net. Click TV and then TV Channel Lineups. The subsequent page contains PDFs of channel lineups arranged by the cities that Optimum services.