Gilbert and Sullivan



Based on the 19th-Century light opera writing duo of the same names, Gilbert & Sullivan would often appear before Oscar the Grouch on Sesame Street and sing him a song about whatever subject was the topic of the day, aided by the the human cast.

In the early 80's, they appeared in three inserts:


 * The Letter B
 * At Your Library (see image)
 * Before and After

Both are made from Fat Blue Anything Muppets.