Lew Zealand and his singing fish

[muppetmonster]

I never saw the episode Lew Zealand appeared with his singing fish in "the Muppet Show", but the only reason I know he performs this act is his appearance on the "Muppets Inside" CD Rom game. Anyway, I read on the Internet that he appears in episode 524 of "the Muppet Show", of where he performs with his singing fish, though I never saw that episode, but does anyone know any of other episodes he appeared in with them? Thanks in advance.

Muppetmonster