Don't Forget the Diver - S4-E2
Factual error: While Capt. Square is looking through his binoculars at what he thinks is Mainwaring's platoon marching with their rifles, a 1960's Bedford lorry drives past on the road behind them.
Aunt Bee's Cruise: Part 2 - S1-E16
Factual error: Captain Wolford tells Aunt Bee that he has performed several shipboard weddings. Contrary to popular belief, sea captains have no authority to perform weddings.
Factual error: Early in the episode, while Jason is at the log flume, power lines and transformers are visible to the left. (00:01:15)
Factual error: 19 1/2 minutes in. They pull over a car and run the plate. Malloy tells the driver the car is registered to a Volkswagen. He should have said the plate is registered.
Episode #1.3 - S1-E3
Factual error: In the Scarlet Pimpernel sketch, the opening caption reads "France, 1778." This is the Scarlet Pimpernel who rescues people during the "Reign of Terror", as is confirmed several times during the sketch. But the French Revolution was still eleven years away and its Reign of Terror wouldn't start until 1793.