Brendan Carr John Lamparski/Getty Images Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment In 1941, the Federal Communications Commission established the Chain Broadcasting Regulations to try to break up a radio landscape that had become dominated by just four major national players. The regulations were challenged by NBC, with the company taking the case to the Supreme Court, which upheld the rules.