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The New Scooby and Scrappy-Doo Show: Season 2, Episode 10 - A Code in the Nose (1984)
Released: October 6, 1984
When a supervillain named Codefinger steals a top-secret decoding device and hides it in Pingley's Dept. store, the military recruits the gang to help them find it. They end up in a crazy situation when they talk secret code to the household appliances in the store.
