TS84 1984 Trial Sermons: Operation Mnemoneuo TS84-01 November 30, 1984 View Class Joe Griffin's 1984 GDC Trial Sermon: Operation Mnemoneuo: Lesson 1 TS84-02 December 2, 1984 View Class Joe Griffin's 1984 GDC Trial Sermon: Operation Mnemoneuo: Lesson 2