Trivia: Whenever there is an accident involving the general population you can ALWAYS hear amongst the groans a man saying, "My leg..."Some examples are: 1. In the episode "Hall Monitor" when SpongeBob directs all the cars in the wrong direction, you can see a bunch of wrecked cars, and then you hear the recording "My leg..." 2. And in "Boating School" when SpongeBob crashes into the lighthouse you can hear a man moan "My leg..." 3. On "The Chaperone" episode, when all the kids at the prom get hurt during "The Sponge" song you can hear "My leg..." 4. This is the one in "Culture Shock" where Squidward puts on a talent show.When Pearl puts on her performance, and jumps up and down, people start crashing through the air.At this part the "My leg..." sound is heard 5. On "Sleepy Time, when SpongeBob is in Plankton's dream, Plankton says "Peek-a-boo I see you, Zap!", and you hear "My leg..." 6. In the episode "Aarrgh!", a fish walks in the Krusty Krab and says "Whip up those patties Crabs." and something else, and Mr.Krabs throws him out and he says "My leg..." 7. In "Walking Small", when SpongeBob gets out his towel, he fans all the sound out of it.All the fish leave instantly.You can hear the recording "My leg..." 8. On "Karate Choppers", when SpongeBob knocks a guy out thinking he's Sandy he says "My leg..." 9. And in "Something Smells" when SpongeBob makes the marching band fall over and fly everywhere you can, once again hear "My leg..." Also, in the movie, a joke was made on this, where instead he says "My eyes!"
Trivia: Spongebob's first words as a baby were, "May I take your order?"
Trivia: In "Where's Gary?" when Spongebob takes the Dirty Bubble Challenge, look closely at the paddleball box; it has the Nickelodeon logo on it.
Trivia: In the episode "Karate" when Sandy is about to pour the hot sauce over Spongebob's tongue, the face on the sauce that laughs and taunts Spongebob is Tom Kenny, the voice of Spongebob.
Trivia: Plankton's wife, Karen, is named after Steve Hillenburg's wife. Plus, the actor is Jill Talley, the wife of Tom Kenney.
Trivia: In the episode "Spongebob Meets The Strangler", the Tattle Tale Strangler is based on a killer from the movie "Cry Baby Killer".
Trivia: Stephen Hillenburg, the show's creator, provided the lips for Painty the Pirate (the pirate who sings the theme song). He also does Potty the Parrot's voice.
Trivia: In the Karate Island episode, the voice of the leader is Pat Morita, star of The Karate Kid.
Chosen answer: You need to provide a little bit more information to be able to answer a question like this. In what region is it not being shown? I see it being replayed here in Australia fairly frequently. As for a general reason, there does not appear to be any for why it specifically might have been taken off the air in any country or region. Like any show certain episodes can sometimes not be replayed for long periods for unknown reasons.