Eh... the first Naruto had a very successful run all things considered. It didn't get canned until the filler and only a fraction of the episodes of those filler seasons didn't air. It just wasn't given an honorable death by any means. Nobody would consider that broadcast a failure given Cartoon Network treated Naruto like gold for around 180 episodes of it's 220. Shippuden's on the other hand was only treated well for about 60-70 episodes before DXD started burying it but ratings may have been the cause in which case it's record is even more tarnished. Hopefully that doesn't keep it from getting another broadcast home but apparently Viz uploaded episodes 101-112 on iTunes recently and DXD hasn't even reached 100.