Download The Congress Hd ' title='Download The Congress Hd ' />Digital television transition in the United States. The DTV an abbreviation of digital television, also called digital broadcast transition in the United States was the switchover from analog the traditional method of transmitting television signals to exclusively digital broadcasting of free over the air television programming. According to by David Rehr, then president and CEO of the National Association of Broadcasters, this transition represented the most significant advancement of television technology since color TV was introduced. Princess Review.