This is EXACTLY why it was bugging me! Unfortunately I don't remember the jokes of which you speak. Maybe you could refresh my memory?
Good point about Mr. Teh,ah,tim,eh, tho!

Okay, when the witches conjure up the demon in "Wyrd sisters", it gives its name as "WxrtHltl-jwlpklz". Am I pronouncing this correctly, or is pronounced with a soft (H)?