Despite being the central character of the show, there are a number of episodes in which Arthur does not appear at all. This is a list of them: (Does not include title cards, openings or the theme song)

So far, Arthur has appeared in all but twenty of the show's more-than-200 episodes.

Season 7 (one absence)

Season 8 (three absences)

Season 9 (one absence)

Season 10 (one absence)

Season 11 (three absences)

Season 13 (three absences)

Season 14 (one absence)

Season 15 (two absences)

Season 18 (one absence)

Season 19 (two absences)