Coffee Break was the title of a 15-minute program broadcast on the military’s Far East Network (FEN). The following article is from the Pacific Stars and Stripes, Tokyo, Japan, on July 7, 1962.
According to this information, the Stewart interview was to be broadcast on Monday, July 9, 1962. A check of the Stars and Stripes for that day, revealed this listing:
This show is not available, so nothing is known beyond what is mentioned in the article; Stewart was interviewed at the 12th International Berlin Film Festival by Walt Sheldon.