The US “Big Four” national broadcast networks – CBS, ABC, NBC and Fox – are desperate to get their content in front of viewers, particularly the younger viewers that now eschew both traditional and antenna-delivered TV for streaming packages like Netflix, Sling TV and DirecTV Now. But the national broadcasters have run up against a choke point: the networks of independent affiliate station groups that want a bigger piece of the licensing revenue pie. Now, broadcasters are ramping up their efforts to consolidate licensing agreements on behalf of their affiliates in hopes of streamlining these retransmission negotiations. This week, three of the national broadcasters have reached a settlement with FilmOn, an online video network that’s been engaged in a long…