Master Vile and the Metallic Armor (1) - S3-E28
Continuity mistake: When the Rangers are riding horses Billy's shirt changes from a dark blue tank top to a blue striped T-shirt and back.
Audio problem: When Tommy is fighting the last putty before Goldar transports him, there is a contact noise made as he rolls over the putty's back; no hit was made on that manoeuvre.
For Whom the Bell Trolls - S1-E9
Visible crew/equipment: During the big fight at the end between Ticklesneezer and Megazord you can see a child crouching down next to Megazord at one point. It's hard to miss, bottom right of the screen, and he's wearing green clothing. This is due to the original sentai footage featuring the oversized child in the megazord battle and the Americanized version not editing them out. (00:16:55)
Big Sisters - S1-E7
Visible crew/equipment: When Maria gets down off the Megazord's hand to get into the Rad Bug you can see a driver in the front seat despite the fact that it's supposed to be empty and being controlled remotely. (00:15:21)
Other mistake: When the Power Rangers morph outside the cave and shout "Power Rangers!" you can see Kimberley is grey not pink. It looks like a post-production error and not an actual grey outfit. (00:13:17)
Continuity mistake: When Kimberley and Trini are fighting the Putties and see the giant Minotaur pass by there is, what looks like, a small child between them. This child is not seen before or after this one shot. (00:11:09)
Continuity mistake: At the start of the episode, Bulk attempts to climb the rope and breaks it, pulling it down with several pieces of the ceiling coming down on top of him. At the end of the episode, this is suddenly all fixed with Trini climbing the same rope. The same gum and dirty spots are all around the top again with the ceiling appearing completely undamaged from before despite Bulk yanking it free and breaking the ceiling. (00:19:25)
Revealing mistake: For shows like this, sped up footage can be used for effect on people or items to make them seem like they are going faster. However, in the Command Center after Alpha accident'y zaps himself, he starts to flail around the room rapidly with sped up camera. The rangers move out of the way at seemingly normal speed which would mean they were actually moving slowly when filming to make it appear they were normal. This is a good effect, except the sped up camera is given away by the fact the fluctuating lights on the golden poles around the room are flashing at much higher speeds by the sped up footage, giving it away. (00:05:12)
Revealing mistake: After the rope breaks and Bulk is on the floor, he and Skull look up as the ceiling dumps pieces onto them. After this, Bulk spits out white dust that's from the ceiling. However before this even happens as he starts to look up, you can see some white on his lips with his cheeks and mouth perched where he already has the powder in his mouth ready to spit out. (00:03:12)
Continuity mistake: When Skull gets up in Jason's face about the climbing rope, asking if he's saying Bulk can't do it, there is a girl in the background with a red shirt sitting down. In the next shot when the camera pulls back, this girl is suddenly up and walking off to the right of camera. (00:02:33)
Continuity mistake: At the juice bar, Ernie walks up with a tray of drinks and asks who ordered the spinach juice. The shot changes as the ground begins to shake, and suddenly the drinks in his tray are in different positions. Most notably the blue and red cups Switching Places. (00:06:47)
Continuity mistake: When Bulk and Skull interrupt the Karate lesson and push Billy aside. A shot of Jason standing next to the wall has a painting of an umbrella right behind Jason's shoulder. Then when Bulk and Skull walk up to him, suddenly there is a good couple feet distance between him and the umbrella. (00:05:17)
Continuity mistake: After Rita is freed and blows up her dumpster prison, she taunts the astronauts and says she's going to destroy the nearest planet. She's making a hand gesture as she does and then suddenly between cuts she's in a different position. The goons beside her also are in different stances. (00:01:58)
Character mistake: As one of Rita's goons is helping her out of her prison, she complains that he made her step in a puddle right outside of her canister. However, they are on the moon, so there is no way there is a puddle she could have stepped in. (00:01:44)
Continuity mistake: When Bulk and Skull are thrown onto the crash mats, Skull's position changes instantly. Note the edge of the pattern on the mat in relation to his left knee. (00:04:00)
Continuity mistake: When the Rangers find Uncle Howard tied to the bombs, Howard asks "Did he tell you about the bomb?" then we see the clock counting down from 18 seconds. A few seconds later, Billy is being encouraged to deactivate the bomb. We get another view of the clock with Billy's hand trying to deactivate it, and the clock is counting down from 18 seconds again. (00:11:55)
Audio problem: When Trini explains to Sylvia about staying together, the audio is an overdub as her mouth doesn't move. (00:04:00)
Continuity mistake: Whenever we see the Rangers morph it is always the same clip that is used to show this. This is especially apparent towards the middle of Season 2 when Zack has dreadlocks in the program, but his crew cut hair in the morph sequence. (00:07:25)
Continuity mistake: When Alpha is preparing the antidote for Billy and Kimberly after they are turned into punks, the cups change from being half full to having only a small amount of liquid. (00:13:30)





Answer: According to the IMDB, there are currently 10 different series (with an 11th premiering in 2006). And, as far as I can tell, there have been only two theatrically released movies. All of the series, with the exception of the first one (that premiered back in '93) are spin-offs of the original, and they all share similar plot lines, characters, etc.
Cubs Fan ★