. The real Greg 'Pappy' Boyington appeared in an episode in a cameo role.
As, at the time, there were no genuine A6M "Zero" fighters in flyable condition (this has been rectified only in recent years), all of the Japanese Zeroes depicted were actually American AT-6 "Texan" trainer aircraft that were specially modified to resemble a Zero.
When nurses were added to the regular cast, they were referred to in the opening credits as "Pappy Lambs" as a takeoff on the show that was beating this one in the ratings at the time, "Charlie's Angels" (1976).
Red West was filming a scene on this series when he was told his former boss, Elvis Presley had died. West was given the rest of the day off.