The Teaching Company (also known as The Great Courses) produces recordings of lectures.
The company travels across the US, recording great professors lecturing on great topics that will appeal to any lifelong learner. These lecture are availible on CD and DVD.
Contents span across nine subject categories: business and economics, fine arts and music, ancient and medieval history, modern history, literature and English language, philosophy and intellectual history, religion, science and mathematics, and social sciences.
You can find these jewels at the Main Library in the Reading Room.