Good Night Sweet Skipper - S1-E5
Continuity mistake: When the Professor drops a couple of tranquilizer pills in the Skipper's cup, it's nearly filled to the rim. As he hides the bottle of pills, the liquid is a little lower.
Gilligan's Island (1964)
1 continuity mistake in Good Night Sweet Skipper - chronological order
Starring: Alan Hale Jr., Jim Backus, Bob Denver, Natalie Schafer
The Friendly Physician - S2-E29
Plot hole: The scientist yells for Igor to capture the escaping Castaways, to which Igor responds "capture them yourself" in Ginger's voice. The scientist appears surprised to find out Igor is not Igor, but how can this be? He had to be the one to pull the lever to switch everyone's personalities and bodies around, so he should have already known.
Skipper Jonas Grumby: Ginger, I've got a problem... I've got a real problem... Now you're a girl, right?
Ginger Grant: Well, if you're not sure about that, you have got a problem.
Don't Bug the Mosquitoes - S2-E12
Trivia: The Wellingtons, who sang the Gilligan's Island theme song, appeared in this episode as Gilligan's favorite group The Mosquitoes.
Question: Why did the Howells, Ginger and Mary Ann have so many changes of clothes with them? It was only a three hour tour.
Answer: I've been binge watching it, and a couple of times trunks with costumes have washed ashore, and in one episode the professor figured out how to make thread for weaving cloth.
Answer: Bob Denver answered this when he was on a talk show hosted by Pat Sajak. He said they were going to write into an episode where the castaways found all these clothes, but it got too complicated, so he said, they decided, "who cares, it's only a TV show," and forgot about it. So the writers and actors even asked this, they just never bothered to address it.