1927    The Federal Radio Commission (later renamed the Federal Communications Commission) begins to regulate the use of radio frequencies in the United States.

1934    The Communications Act of 1934 establishes the United States' Federal Communications Commission (FCC).

1940    FM radio is demonstrated to the Federal Communications Commission for the first time.

1950    Television: CBS's mechanical color system is the first to be licensed for broadcast by the U.S. Federal Communications Commission.

1987    The Federal Communications Commission rescinds the Fairness Doctrine which had required radio and television stations to present controversial issues "fairly".