So wait a second... Fuzzygobo, you say that Ari and Aristotle are the same character? Hmm, I have them listed as separate entries in my ML cause I thought they were two different characters. In one of the defaced issues of SS Magazine still in my book shelves, one of the first ones I believe which was sponsored by the letter A, there's an exercise somewhere in its pages about writing. There's a big drawing of a notepad and a few Muppet characters whose names start with A at the bottom of the page. Aristotle was featured here and from what I remember he didn't seem to be blind. He had what might resemble Beaker's flame red hair, light blueish fur, a dark red or maroon nose, and an orange lip like Grover's.
If you have any definitive info on whether these are two different characters or the same-self character, please LMK and I'll ammend the entries in my Muppet Listings.
Thanks and hope to hear from you soon.