There is a statement that Schultz will be promoted, but he still wears 2 diamonds on the shoulder boards, denoting rank of OberFeldwebel, equivalent to Master Sergeant in the U.S. Army.
General Kammler has 3 diamonds on his shoulder boards, denoting rank of GeneralOberst, equivalent to a 4-star General in the U.S. Army.
The title is based on the non-fiction history "The Rise and Fall of the Third Reich", a 1960 book by William L. Shirer chronicling the general history of Nazi Germany from 1933 to 1945.
The Time Tunnel (1966) interfered with season 2 of Hogan's Heroes Friday nights during the 1966-67 TV season when they originally aired. Whit Bissell, who plays General Kammler, was a regular on The Time Tunnel (1966) and played Lt. Gen. Heywood Kirk. This episode interfered with Revenge of the Gods (1966) when they originally aired on October 21, 1966.
Sgt. Schultz and General Kammler call each other by their first names because they are old friends, even though one is a general and one is an enlisted man. Even for old friends, this is a breach of protocol when on duty.