In "Sassette's Hive," when the magic balloon is falling from the sky after being attacked by members of the Wasp Renegade, Grandpa exclaims, "The balloon loses too much air. I can't control it." However, this is not Jonathan Winter's voice (who voiced Grandpa), but from is Don Messick's (who voiced Papa Smurf).
In "Sassette's Hive," Grandpa exclaimed that a daisy "saved the day" when he and the Smurflings crashed into it from their magic balloon. However, the red flower they crashed into is not a daisy.