This is very sad, my daughter loves the Wiggles. It's usually the first thing she says when she wakes up, "Watch Wiggles? Greg, Anthony, Murray and Jeff?"
I'm pretty sure the replacement has been featured as the character "Professor Singalotta Songa" or something..an opera singer on some video..I can't believe I know that..
The Wiggles would actually use the "J word" at Christmas time.
Sorry to hear it.