It’s the holiday season. This is supposed to be a happy time. So, why are the broadcasters suddenly behaving like kids who find coal in their stockings? It's not as though they have nothing to celebrate. (More on that below.) And yet they seem to be accentuating the negative. I’m speaking primarily of the shocking news earlier this week that the chief programmers at CBS, NBC, ABC and Fox had collectively decided to cancel their 30-minute sessions with reporters and critics at the upcoming Winter Television Critics Association tour.