Be Careful What You Witch For - S2-E22
Plot hole: When teenage Prue has run away with the demon, and Phoebe and Piper find her in the park, teenage Prue is 'killed'. Her sisters drive her home to get Leo to heal her, but shouldn't they have just been able to call to Leo to orb to them when Prue was first hurt, and heal her in the park, and save driving back to the Manor, risking Prue dying?
Suggested correction: I see orbing to the park but he didn't heal her, she was already dead and he can't heal the dead, that's why the genie brought her back - that's what Phoebe wished for.
But if they would have called for him right away - he would have been able to heal her before she died. However at this point in time I don't think they knew how to call for him.
Two Thirty - S4-E24
Plot hole: In this episode Arthur scams Deacon and several other parents for phony piano lessons because he doesn't actually know how to play the piano. However, earlier in the series (Art House episode, S1 - E24) we learn that Arthur can play the piano when he temporarily moves out and after his house warming party Doug says to Carrie, "Who knew Arthur could play the piano like that?"
Plot hole: In this episode Carrie runs into Aidan, who now has what looks to be about a 6 month old baby (Tate). This doesn't seem possible, as Carrie and Aidan would have only broken up about a year ago, and Miranda was around 6 months pregnant when they broke up. Brady is only about 5 months old at this point in the series, leaving Aidan only roughly 8 months to have this baby - but Aidan lay in bed for about a month and then dated Nina Katz for awhile. Timeline just doesn't seem to fit.
Plot hole: Officer Jenny asks Ash what he knows about the "trio" when he tells her that the pirates are likely Team Rocket, but he hadn't said anything about there being three of them before that. And Jenny obviously didn't know anything about Team Rocket, either. (00:05:30)
100 Light Years From Home - S5-E19
Plot hole: At the end of the episode, Dawson is seated in the kitchen talking to Pacey in a normally loud voice. At the same time, Joey and Charlie are awake and talking in the pup tent in the living room, very close to the kitchen. Later in the Season we learn that Joey had no idea Dawson had driven down to Florida to see her, as apparently he left without seeing or talking to her. But being in such close proximity that morning; there is no way Joey would not have been able to hear Dawson's voice as he talked with Pacey. The living room was close enough to the kitchen, so it doesn't make sense that Joey wouldn't have known Dawson was there and if she did-she would have gone to talk to him.
Plot hole: Ellen and Rob wear wedding rings, yet their wedding is not announced until "An Affair to Forget" in the second season.
Plot hole: For the past 5 series, Bulk and Skull have been in every episode. They've seen villains from other galaxies (Lord Zedd, Rita Repulsa, The Machine Empire, and Divatox) who have all sent monsters to Angel Grove and threatened Bulk and Skull on countless occasions. They've even been turned into monkeys and made invisible by space creatures. Why do they feel the need to spend Series 6 seeing if alien life exists? Surely 5 series worth of aliens is enough proof?
Suggested correction: They do not spend the series seeing if alien life exists. Their first scene in the season is them spotting Astronema's ship through a telescope and yelling UFO. They know. It's another one of their kooky schemes to get rich by being the first to discover these aliens and getting rich off it. (they were out looking for an undiscovered comet) They even get Professor Phenomena who's already been doing this before they were. It always felt like a play on Peter Parker getting rich off selling photos of Spiderman. But, dumber. I mean come on they tried catching a rabbit with carrots because they thought it was an alien. Stupid idea yes. Plot hole. No. It tracks with their characters.
Suggested correction: Think about it They have no reason to believe that they are aliens from space. They look human or could have been created by humans. It could have been a form of magic. Plus we never know what the news or the government is telling the public to normalize these situations. They don't actually know where they came from.
This is only a theory. Theories never solve mistakes.
No one in Angel Grove, believes them when they say they've seen aliens. It's been a running gag since Zeo. Go back and look at King For a Day Part II, after they got back from being kidnapped. Even the professor is viewed as a kook for believing in the existence of aliens.
The Powerpuff Girls Best Rainy Day Adventure Ever / Just Desserts - S2-E10
Plot hole: The children decided that they hated the Powerpuff girls in one day. Then how did they have supervillain costumes and a van? The mom said they had lots of time to prepare.
Plot hole: During the episode "Superstition", Onizuka thinks he has cancer because the magnetic pain-pads he was wearing created strange blobs in the X-Ray he has taken. However, given the fact that the X-Ray was so strange, doctors would have given him a complete physical, and noticed the pads much sooner. Here, they literally just assume he has tumors, and fail to ever take notice of the pads. Simply impossible, given the gravity of the situation. (Obviously, this is to pay off at the very end of the episode.)
Deathfist 5: Major Crimes Unit - S2-E15
Plot hole: The whole case is solved because of astronomical coincidences, since the culprit is someone related to the actor, who is teaming up with the investigators for an entirely unrelated reason. Los Angeles is kinda too big for this sort of 'coincidence'. Moreover, had they committed the crime any other day (there was no particular reason) there would have been no connection.