My Buddy, the War Hero - S1-E25
Factual error: Gunnery Sgt Jim Mason "Jimbo" only has rifle marksmanship badge and no pistol marksmanship badge on his uniform. As a Marine senior non-commissioned officer he should have both on his uniform like Gunnery Sgt. Carter. (00:21:00)
Answer: There's no indication they were meeting for the first time, in fact they seem to know each other as Sgt. Carter addresses Andy only as "Sheriff". Gomer Pyle just says his two favorite people are "meeting face to face", and obviously in the pilot episode Sgt. Carter wasn't one of Pyle's favorite people yet.
Bishop73