At some point, The Cosby Show became more than a sitcom; it morphed into a barometer with which to measure success for blacks. But perhaps that was its intention from the beginning. When network executives Marcy Carsey and Tom Werner first pitched the idea of the sitcom to NBC, Cliff Huxtable was a limousine-driving father with a stay-at-home wife and four school-aged children. But before the pilot was shot, Cosby had painted a striking new mural for producers.