In general I have been interested in the periphery Muppets.  I love the main cast as well, but when and whenever Annie Sue or Baskerville etc. showed up I was pleased.  Keep in mind when The Muppet Show first season aired I was either 5 or 6.  One or both of my parents would watch it with me.  We each picked Muppets to be our stand-in (not necessarily our favorite Muppet, but who we would be if a Muppet).  Mine was Zoot.  He was blue and played the saxophone.  That was enough for me.  My Dad is a scientist, so of course he was Bunsen.  My Mom's quote: "I do the laundry so I guess I am Hilda".  My Grandmother was over visiting (she had watched the show with me as well) and commented "How come I do not have a Muppet?"  The episode that night was Milton Berle - where Zelda Rose and her singing owl was featured.  From then on Zelda was known in my house as Grandma Muppet.  Until I owned the Muppet Show 2 album and I learned her name was Zelda.  The end.