A Special Program for 20th Menachem Av

In the weekly story, Rabbi Butman recounts that the Rebbe said after the passing of his father: “That morning, I felt that my father was no longer.” The broadcast also includes several stories about 20th Av 5704 in 770. When did the Rebbe recite the morning prayer every day, and when was the first time that the Rebbe recited Kaddish in the presence of the Previous Rebbe?