These were done by Dr. Richard L. Pratt, Jr. He is the President and founder of Third Millennium Ministries and is an adjunct professor of Old Testament at RTS and a visiting professor at Covenant Theological Seminary.

Here are his lectures on interpreting the OT prophets:

http://thirdmill.org/sermons/series.asp/au/ric_pratt/srs/Lectures%20on%20Prophecy