For those too young or disinterested to remember, Hogan's Heroes was a 1960s sitcom set in a Nazi concentration camp. (Laughing yet?) The show was wildly popular... popular enough to warrant some product placement, don't you think? Check out this extendo commercial from back in the day starring the Hogan's Heroes cast, Jello brand gelatin, Dream Whip, a superfluous laugh track, and... Carol Channing?? Okay, NOW I've seen it all! (DIES.)