A reference is made to a radio show called "Mary Noble, Backstage Wife". It was a soap opera that aired from 1935 to 1959, about a small-town girl who went to New York, and married a handsome star of the stage who was constantly being pursued by other women.
In this episode, Hogan's radio call sign is now "Papa Bear," and the submarine's call sign is now "Goldilocks."
This episode has a very VERY rare situation in which General Burkhalter doesn't yell at Klink at all. This NEVER happens.
Kinchloe makes reference to the St. Louis Browns being in first place. This would place Hogan's Heroes in 1944, even though this episode was in the first of a six-season run, while World War II ended in 1945.
Col. Hogan whistles the show theme song in front of Col. Klink.