Ray Mickshaw/FOX
It's an exhausting (and exciting) pageant of the networks' best current programming and upcoming shows for hundreds of critics and reporters from all over the US (and even some international press) who flock to Los Angeles twice a year for the event.
Each day of the TCA press tour, a network's top boss kicks off the morning by facing reporters in an executive session. Depending on how their network is doing, they'll be celebrated or verbally attacked by the journalists. Then the reporters meet and greet panel after panel dedicated to said network's shows and stars.
Every press tour, certain themes and patterns from the TV world emerge. They tell us about what the industry is wrestling with and give us a snapshot of what's to come.
Here are the biggest things the TV industry is facing in 2016: