Here are some extra McCormack lectures I have found. I am still bummed that the Kantzer lectures were removed, but I’ve talked with the Henry Center about it, and I understand their decision. Here is a chapel lecture from Wheaton.
Here is a talk he gave on Kenosis.
These should be good, but one can only weep in sadness that his Croall lectures, which deal directly at the heart of about fourteen major issues, are not available online.