There’s a lot you can learn about human interaction by watching TV that you can’t learn in a social skills class or by reading a book.
There are a lot of rules and concepts that no one actually understands on an explicit level. No one knows how to explain them, and a lot of times people don’t even realize there’s anything to explain, or that it’s possible to actually not understand.
TV characters follow some of these rules, and show some of these concepts.
And when you watch a TV show, you can watch the same episode again and again, and learn more nuance by seeing how it works on a TV story.
I think that The Simpsons, Worst Cooks in America, and Buffy the Vampire Slayer are particularly good for this, but there are many others.