While, strictly speaking, this is a sermon and not a conference, Fr. Hewko's "A Crash Course on 'Our Apostolic Mandate' of St Pius X" is too important not to receive special attention. It is powerful! This sermon/lesson covers many of the doctrinal and moral issues of our present time, all the while providing guidance and direction in approaching those issues as a Catholic should.
"So let us be confident, let us not be unprepared, let us not be outflanked, let us be wise, vigilant, fighting against those who are trying to tear the faith out of our souls and morality out of our hearts, so that we may remain Catholics, remain united to the Blessed Virgin Mary, remain united to the Roman Catholic Church, remain faithful children of the Church."- Archbp. Lefebvre 1980