The following video is part of a Trinity vs. Oneness Debate held in 1999, between James White (Trinitarian) vs. Robert Sabin (Oneness). This is the first part of the debate, including the introduction and Dr. White's opening presentation. Even though it is only the first part, it is about 51 minutes long. One particularly nice feature is that one can see Dr. White's projected presentation that accompanies the debate.
This presentation may be helpful for Oneness Pentacostals who happen to stop by, as well as for Unitarians and the like. It may also be helpful for dealing with Muslims who like to borrow the arguments of the Oneness Pentacostals and (other) Unitarians (Oneness folks tend not to use the "Unitarian" label for themselves).
I hope that additional segments of the debate will become available in time.
To the glory of our Triune God: Father, Son, and Holy Ghost,