Yeah, Rubik brought the cynic out of me. A cartoon about a puzzle toy. That was a stretch.
The cool thing about Alf was the continuity between the show and the cartoon. I appreciated the expanse of Alf's world and how faithful the writers stayed to Alf's descriptions of home to the Tanner family. It was as if to say, "See, Alf really was telling the truth about Melmac and Rhonda." (Sheesh I can't believe the worthless trivia I recall) Alf didn't have the best credibility when it came to story telling as the series progressed so I was impressed that he was at this point.
Smurfs now jumped the shark at some point during the cartoonist strike. I don't know if the writers got tired or if they hired a different bunch. All of the sudden they kept adding new characters to rescue the sinking ship. Remember they added Grandpa smurf as well. Perhaps the show relied too much on magic spells. Whatever the problem was, Papa could find a magical solution if they found the right ingredients. That's what the show eventually boiled down to. The PeeWee character got annoying in a Scrappy Doo kind of way.
Incidentally, Clockwork became my favorite smurf when it was all said and done. Though I was fond of Handy Smurf, who I found more powerful than Papa because he used his brain to come up with solutions. My childhood was riddled with philosophy. I don't know why.