Found it.
Father Hesse on the validity of the Novus Ordo sacraments. The first 50 minutes are worth watching as a good lead up to his views on the validity new rite ordination to priesthood, and new rite for consecration of bishop. He begins to talk specifically about these new rites at about the 50:00 minute mark. But the first 50 minutes are mainly about the validity of the New Mass, which is a similar argument as to why he believes that the new rites of ordination and consecration are more clear than the old rites. Very interesting.