Examine the content through the lens of argument types.
Once you start looking, you'll notice that almost all nonfiction you read or watch can be analysed using an argument types framework.
Not only will you see examples of all these argument types, but more importantly you'll find you are better able to recognise when an argument is using appropriate reasoning to reach its conclusion.
(For example, you'll more easily notice valuational arguments that don't establish any criteria, or causal predictions that don't show any chain of cause & effect.)