Before Hogan's Heroes started up its run of several years airing weekly on a TV network, a pre-debut radio ad for the show was heard widely - and quoted in Newsweek:
Question: "What are some of the amusing ingredients?" Answer: "German police dogs, machine guns, the Gestapo… shall we say, ‘If you liked World War II, you’ll love Hogan’s Heroes’"
The second voice was that of Bob Crane, the actor who played Hogan.
(The Newsweek piece was called "Fun with the Nazis.")