The TV world is changing. You wouldn't know it from the major networks' fall schedules

The television world is changing at a breakneck pace. But you wouldn't know it looking at the schedules of the major broadcast networks, which -- in what can only be perceived as their collective read of both business conditions and the public's state of mind -- have stuck with the tried and true, and kept changes to a minimum.

Ratings for networks like CBS, ABC, NBC and Fox have dropped sharply in recent years, amid an explosion of options. Their parent companies have pivoted to funnel resources into streaming, offering new revenue while fueling uncertainty about the future of traditional forms of television. The broadcast networks nevertheless still generate most of TV's biggest audiences, and spent this week outlining plans for the fall and upcoming season, known as the upfronts, in advance of selling billions in commercial time to advertisers.