These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Bear in the Big Blue House
Ear Worm: The Bear Cha Cha Cha. Just reading the song's name is enough.
She Really Can Sing: Lynne Thigpen as Luna. It's especially poignant if you knew her best as The Chief, who never sang.
Tear Jerker and Harsher in Hindsight: Listen to The Goodbye Song. Then ponder upon the fact that Lynne Thigpen, the VA of Luna, has passed on. Over seven years ago. After that, wipe those tears off your eyes, listen to Bear's ending speech, and when he ends with a "see you soon", realize in horror that the show has been off the air for four years and has not been in production for nine years as of April 2012...
They Wasted A Perfectly Good Character: There were a number of regular guests that they probably could have developed more or even become regulars, but on the whole they generally stuck with focusing for the most part on the main cast.