Occasional risque jokes, some of which were deleted from rebroadcasts.
Violence & Gore
Mild
Characters are slapped or punched on rare occasions; it's always obviously faked and played for laughs.
Profanity
None
On two occasions the word "damn" was used.
Toilet humor became especially commonplace in later seasons; a boy's flatulence was a source of humor.
Alcohol, Drugs & Smoking
None
One episode depicted kids intentionally hitting themselves in the face with pies; though older viewers will recognize this as a metaphor for drug use, younger kids won't get it.