Alice Whipple: Harry, how long are we going to be here?
Harry Whipple: As long as it takes.
Alice Whipple: Well, I've got to get to the beauty parlor.
Harry Whipple: You're telling me.
Sgt. Carter: Pyle. My old grandmother could do better than that.
Gomer Pyle: Well, bless her heart.
Gomer Pyle: Golly.
Answer: If you saw the whole series run, you know that Gomer was a country bumpkin. He fumbled, stumbled and tumbled his way into one disaster after another. There was an episode that questioned why he was never promoted. However, a few years before Jim Nabors died, the real Marine Corps, gave him a ceremonial promotion to the rank of Lance Corporal, which Jim gladly accepted.
Unfortunately, I never saw all the episodes. Only a few episodes and a clip of the episode where he sings "The Impossible Dream" which made me wonder why he was still a PFC. Thanks so much for the info.