Someone on the last page mused about the possibility of Muppet show characters ever cameo'ing on modern day Sesame. I do recall Kermit being on Elmo's World a few years ago. Also I think a painting of Dr Teeth is present in some super old Sesame skit. There's a lot of oddball cameos of Muppets on there over the years. And of course the Sesame characters routinely showed up on the Muppet show in the early days(including the pilot and valentines special) The Muppets and Sesame were inseperable from the 70's til late 80's. I have an april 2002 JHC Muppet flyer that definitely mentions the "coming Halloween special", and thus where the interest in it generated from.