They both involved Margaret Loesch.
Fox Family and The Hub both had cyclone-shaped logos.
Both lucked out with one mega-popular show that overshadowed everything else on their lineups.
They were both joint ventures (Fox Kids/Family Worldwide was a joint venture between News Corporation, Haim Saban, and Allen & Company, while The Hub is a 50/50 partnership between Discovery Communications and Hasbro).
Comments
both aired cartoons and children's entertainment
both were/are based in America
neither was/is available to people without satellite or cable
both broadcast only within the last 20 years
i never watched Fox so i didn't know Fox Kids was on Fox
no strong memories of the Hip Hippos tho