2006 United States broadcast television realignment

In January 2006, the United States' two "second-tier" television networks, UPN and The WB, announced they would both cease operations on September 15 and 17 respectively, and their operations would be transferred to a new joint-venture "fifth" network, The CW. Meanwhile, Fox Television Stations (which owned several UPN and WB-affiliated stations in large cities that were blocked from affiliating with The CW) signed up with MyNetworkTV, a new "sixth" network owned by then-parent company News Corporation's Fox Entertainment Group.