Triple helix model of innovation strong ties with industry and governments, a high degree of independence, and permanent evolution of the relationships between universities, industry and government. Etzkowitz recognizes MIT as a great example of an 'entrepreneurial university’. Building on the triple helix model, the quadruple helix model adds a fourth component to the framework of interactions between university, industry and government: civil society and the media. It was first suggested by Elias G. Carayannis and David F.J. Campbell in "‘Mode 3’ and ‘Quadruple Helix’: toward a 21st century fractal innovation ecosystem". The aim is to bridge the gaps between innovation and civil society. Indeed,
Owned-and-operated television stations in the United States in Green Bay, WFRV-TV (channel 5), and its satellite in Escanaba, Michigan, WJMN-TV (channel 3), to Liberty Media in exchange for common CBS stock held by Liberty Media; the sale of WFRV/WJMN closed on April 18, 2007. The Four Points transaction was approved by the FCC on November 21, 2007, and was finalized on January 10, 2008. In 2012, the Four Points stations were acquired by the Sinclair Broadcast Group; WFRV/WJMN was sold to the Nexstar Broadcasting Group in 2011. For much of the modern television era, NBC did not have an owned-and-operated station in Philadelphia. In 1955, NBC forced