The CW Television Network (commonly referred to as just The CW) is an American English-language free-to-air television network that is operated by the CW Network, LLC, a limited liability joint venture between CBS Corporation, the former owners of United Paramount Network (UPN); and AT&T, whose WarnerMedia subsidiary is the parent company of Warner Bros., former majority owner of The WB. The network's name is an abbreviation derived from the first letters of the names of its two parent corporations (CBS and Warner Bros.)