TV upfronts started Monday, as networks girded themselves against the threat to their advertising revenue from streaming platforms. Jeanine Poggi, a media reporter at Ad Age, and David Cohen, the president of the media insight agency MAGNA, join The Long and The Short on Cheddar to discuss how traditional TV can keep those ad dollars. According to Magna, national TV ad sales fell 2.2 percent in 2017. It predicted that they would decline at least 2 percent each year through 2022.