Characters
So, Joey, what have we learned from tonight’s 90210?
— Dawson • Dawson's Creek

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker turns to a friend and asks, in mock-solemn fashion, what lesson can be drawn from a television programme they have just watched. The question treats entertainment as if it should yield a tidy moral, inviting the listener to sum up the evening's takeaway.
Context reviewed