Squidtastic Voyage/That's No Lady - S4-E15
Audio problem: In "That's No Lady", Mr. Krabs throws a megaphone behind him, but there is no sound of it clattering after him throwing it.
Starring: Clancy Brown, Tom Kenny, Bill Fagerbakke, Rodger Bumpass
Squidtastic Voyage/That's No Lady - S4-E15
Audio problem: In "That's No Lady", Mr. Krabs throws a megaphone behind him, but there is no sound of it clattering after him throwing it.

Best Day Ever/The Gift of Gum - S4-E20
Revealing mistake: When Squidward says "I suppose if you haven't fixed my clarinet, the concert would have been a bust", Sandy's tail is the same color as her suit.
Spongebob's Last Stand - S7-E22
Mr. Krabs: Alright, Plankton! It's Eugene Krabs, here, with, What's-His-Name! Now come on out!
Plankton: I can't.
Mr. Krabs: Come on outside, and take what's coming to you!
Plankton: I really can't come outside!
SpongeBob: Why not?
Plankton: Because I'm already out here, you bumbling bottom feeders! Open your eyes for crying out loud!
Valentine's Day / The Paper - S1-E16
Question: How come they never air this episode on TV anymore?
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.
Lummie ★