Hogan's Heroes, Season 3

[Colonel Wembley of British Army Intelligence and a radio operator are baffled at a message being sent over radio by a Royal Navy submarine, which is relaying information from Colonel Hogan at Stalag 13.]

Radio Operator:
I thought we weren't giving our messages in code, sir.

Colonel Wembley:
Perhaps Hogan has forgotten that. Would you look up "chimpanzee" in the code book, Sergeant?

Radio Operator:
[Checks the code book] "Chimpanzee" is not part of the code, sir.

Colonel Wembley:
I've no idea what the message is at all.

Submarine Officer:
The chimpanzee will be wearing a fatigue uniform with sergeant's stripes and answers to the name of "Freddy."

Colonel Wembley:
I've heard of Yankee ingenuity, but this is ridiculous!