After its founder's death in 1968, the network, due to a crisis with its owners, transitioned itself becoming the first national television network in 1970, composed of its two main stations, Channels 4 and 6, its 7 other stations and 17 affiliate stations nationwide.
After its founder's death in 1968, the network faced ownership challenges that led to a change in structure, making it the first national television network in 1970. This new setup included its two main stations (Channels 4 and 6), seven other stations, and 17 affiliate stations across the country.