User:KATMAKROFAN

Creator of Weber Manufacturing and Shark Tank (1979-99 TV series).

The Big 7
ABC/NBC/CBS plus:
 * UBC (United Broadcasting Companies; currently owned by Sony thru Sony Pictures Entertainment and Sony Pictures Television)
 * MBS (Metropolitan Broadcasting System; currently owned by RTL Group thru FremantleMedia)
 * IBS (Independent Broadcasting Service; currently owned by Virgin Group thru Virgin Media)
 * GBS (General Broadcasting Service; currently owned by IHeartMedia)

Nineties Newcomers
FOX/The WB/PAX TV/UPN plus:
 * MSN (currently owned by Microsoft)
 * ITV (currently owned by ITV plc; originally named "Carlton")