As for that ABC in history, it had not yet been established.
In fact, the ABC in American history was also a product of anti-trust actions. In 1941, U.S. law mandated that broadcast companies could not own both the Red Broadcasting Network and the Blue Broadcasting Network at the same time, and the largest broadcast company in the United States at the time, NBC, had no choice but to sell part of its business, including the Blue Broadcasting Network. The NBC Blue Network was then acquired by Edward Nobel, a candy tycoon at the time, which then became ABC!
The so-called Red Broadcasting Network and Blue Broadcasting Network were actually NBC's own terms, representing two different broadcast networks, the Red Network focused on entertainment programs, while the Blue Network emphasized political news reporting.