You know, at this point in time, I may be "being difficult", but I'm just going to consider the show as being "off the air"... they rarely show the good older episodes anymore, I dislike much of the newer episodes (I'm still giving Season 16 a fair chance), and I feel like I haven't seen the show in years anymore, so, as far as I'm concerned, Arthur on PBS is now dead to me.
You could always see older episodes on Youtube and PBS' own site. Just a thought.