In the syndicated version of the episode "Symbols of Wisdom", Papa Smurf's scene with Barber was edited out.
The entire soundtrack of "Symbols of Wisdom" was in 2x higher than usual in pitch octave in the syndicated version of the episode.
"Symbols of Wisdom" is one of two appearances of Barber Smurf, the other being the episode "Smurfette's Golden Tresses".
The recurring characters Sir Johan, Peewit, Dame Barbara, The King, Princess Sabina, Lord Balthazar, and Balthazar's dragon all make minor appearances and non-speaking cameos in "Blue Eyes Returns".