When was Wee Sing in Sillyville created?

The cast of Wee Sing in Sillyville - 1989 includes: Mearl as Barney Sandra Dee Heidecke as Betty Bitty Booty Joel Gillespi as Jingleheimer Caren Graham as Pasha Renee Margolin as Sillywhim Dena Marie Conzatti as Biffy Bitty Booty Joel Morello as Three-Button Twirlypop Danny Sears as Benny Bitty Booty Jacqui Sutton as Girl Spurtlegurgle Neal Thomas as Twirlypop Ryan Willard as Scott