Ownership of MyNetworkTV and The CW
MyNetworkTV is owned by Fox Television Stations via Fox Corporation and The CW is owned by Nexstar Media Group, Paramount Global and Warner Bros. Discovery.
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Ownership of Fox and Ion
Fox is owned by Fox Entertainment via Fox Corporation and Ion is owned by Scripps Networks, LLC via E.W. Scripps Company.
Ownership of ABC and PBS
ABC is owned by Disney Television Group via The Walt Disney Company and PBS is owned by their member public television stations via the Corporation for Public Broadcasting.
Ownership of NBC and CBS
NBC is owned by NBC Universal via Comcast and CBS is owned by CBS Entertainment Group via Paramount Global.