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.
Following the death of its founder in 1968, the network faced a crisis with its owners, leading to a shift in ownership that resulted in it becoming the first national television network in 1970. This new structure included its two main stations (Channels 4 and 6), seven other stations, and 17 affiliate stations across the country.