I was surprised to hear that Pee-Wee Herman hosted a CBS saturday morning block hosting the show, since his show didn't begin on CBS until the next television season. I wonder if Pee-Wee's Playhouse was in development at the time (and interestingly, like Little Muppet Monsters, that show would follow Muppet Babies on Saturday mornings). Did Rowdy Roddy Piper have a show on CBS Saturday mornings at the time (the only thing I can think of that he would have been part of was Hulk Hogan's Rock 'n Wrestling, but I think Hulk Hogan was the only wrestler to appear in live-action segments, and none of the wrestlers provided voices. Can't remember off-hand what year or channel that show aired)?
The whole Muppets, Babies, and Monsters block had one set of end credits, mixing stills from Muppet Babies and Little Muppet Monsters. Do you happen to know if they produced a set of Little Muppet Monsters end credits, in the event that the show would eventually air outside of the hour-long block?
In her Tough Pigs interview, Kathryn Mullen said that she used an alternate name for her writing credit, but in the credits for The Great Boodini she's credited as Kathryn Mullen (before your copy of the episode, the second and third episodes were online without credits, and I was looking at the credits for the first episode and couldn't find writing credits for some reason).