Thank the continuing chaos in Washington and the health of the digital market for a respectable 3% jump in the U.S. ad market for the just-finished first half of 2017.  While National TV overall was flat, there were some stand-out performers, as well as some signs of concern.  What is apparent, as we review SMI's data, is that there are some fascinating trends playing out.  The long-term success of the market will be determined by how these develop over the remainder of the year.