18-49 Demo ratings for TV shows are routinely published. They aren't pretty. But you knew that already.
The top rated scripted show this season on broadcast TV (911 on FOX) had a demo rating of 1.0. That particular show was down 23% from last year. The 2nd, 3rd and 4th scripted shows were all down over 20% as well.
Things have changed
fast. Nielsen put out a study in August 2022 saying broadcast viewership (persons 2+) for July 2022 was 9.8% less than July 2021, and cable was down a similar 8.9%, so it isn't only 18-49s who are jumping ship.
Nielsen has
interesting data from June addressing this, in a roundabout way. The basic conclusion is that children age 2-17 who were home from school spent less than 10% of their
additional time with linear TV networks (cable and broadcast combined).
That suggests Disney Channel and other kid/teen focused networks are struggling, and might explain the reduction in hours for PBS Kids a few months back.