Additional stations along the East Coast and in the Midwest were connected by coaxial cable through the late 1940s, and in September 1951 the first transcontinental telecasts took place.
Mnoge postaje diljem Istočne obale i Srednjeg zapada bile su povezane putem koaksijalnih kabela krajem 1940-ih, a u rujnu 1951. emitirani su prvi transkontinentalni prijenosi.