Depending on whom you ask, this is either the worst time to be in TV, or the most exciting. Count Linda Yaccarino and Josh Feldman among the hopeful. The two share the company’s moves to modernize measurement across the industry, and NBC’s plans to launch an ad supported streaming over the top service next year--to do battle with the Netflixes and Hulus of the world. They also explain why Cannes is going through something of a renaissance.