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 nineteen 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 (two absences)

Season 14 (one absence)

Season 15 (two absences)

Season 16 (two absences)

Season 18 (one absence)

Season 19 (two absences)