Thanks for kind remarks -- it truly is a goofy creature, but this show was one of my favorites growing up. While this particular episode is NOT one of my favorites, the creature certainly is. I was also into the ECK energy creature and most every other odd "bear" created for the series. It still holds up today, despite the advances in special effects, I still often prefer the simplicity of the original series -- and being in black and white lends it a certain level of creepiness that's sometimes difficult to define.
Anyways, thought a few people here would get a kick out of it -- would love to hear anyone else's memories of the show.