The CW Television Network (commonly referred to as just The CW) is an American English-language commercial broadcast television network that is controlled, through The CW Network, LLC, by Nexstar Media Group with a 75% ownership interest. The network's name is derived from the first letters of the names of its two founding co-owners CBS Corporation and Warner Bros. (the latter was owned by Time Warner, later AT&T's WarnerMedia). Nexstar closed its acquisition of a controlling interest in The CW on October 3, 2022, with Paramount Global and Warner Bros. Discovery (CBS Corporation and WarnerMedia's respective successors) each retaining a 12.5% ownership stake. The CW debuted on September 18, 2006, after its two predecessors, the United Paramount Network (UPN) and The WB Television Network, respectively ceased operations on September 15 and 17 of that year. The CW's first two nights of programming – on September 18 and 19, 2006 – consisted of reruns and launch-related specials. The CW marked its formal launch date on September 20, 2006, with the two-hour premiere of the seventh cycle of America's Next Top Model. The network's programming lineup is intended to appeal mainly to viewers between the ages of 18 and 34, although from 2008 to 2011, the network shifted its programming to appeal to women in that demographic. As of August 2017, The CW's audience is 50% male and 50% female. The network runs programming seven days a week: airing nightly in prime time, along with a Saturday morning live-action educational programming block produced by Hearst Media Production Group called One Magnificent Morning. The network is also available in southern Canada on pay television providers through stations owned-and-operated by Nexstar and on affiliates owned by Paramount and others that are located within proximity to the Canada–United States border (whose broadcasts of CW shows are subject to simultaneous substitution laws imposed by the Canadian Radio-television and Telecommunications Commission, if a Canadian network holds the broadcast rights); it is also available through two Nexstar-controlled stations that are classified in the United States as superstations – New York City-based de facto flagship WPIX and Los Angeles-based secondary flagship KTLA. Additionally, The CW is available in northern Mexico through affiliates located near the Mexico–U.S. border (such as KFMB-DT2—San Diego/Tijuana, KECY-DT3 in El Centro, California, KVIA-DT2 in El Paso, and KCWT-CD with simulcast network KMBH-LD2 in McAllen/Brownsville, Texas) on pay television providers. In both Canada and Mexico, some free-to-air