Prolegomena - Introduction to Theology (1st lecture)

The first half of this course is a study in the basic areas preliminary to systematic theology, including the definition, nature, history, methods, and sources of systematic theology as well as theological encyclopedia and the spirit of Reformed theology. The second half covers the doctrine of revelation, with special emphasis on the inspiration, inerrancy, and authority of Scripture.
You can purchase all the lectures of this course for $40 at the above link.