A couple wanting a baby is granted a thumb-sized one by a wizard. But escaping the grasp of a stork, the baby falls down, then falls victim to a fish caught by one of King Arthur's knights. The baby then becomes one of Arthur's knights himself.
On ABC and Nickelodeon, King Arthur's line after he finds the thumb-sized baby in his fish, "Monty, you ass! This fish is full of people!" was edited to remove the "you ass" part (so now that the line goes, "Monty...this fish is full of people!"). It should be noted that ABC used to air this uncut on Saturday morning TV between 1985 and 1989. The "you ass" edit wasn't done until 1998.
Rather than edit the "you ass" in "Monty, you ass! This fish is full of people!" (or even mute the entire line, as the video featured on this page has done), Cartoon Network's version cut the scene featuring that entire line.