Wow, that is quite obscure. Even with the name I can't find any references to it on Google. I'm not surprised that the LLMs don't know about it.

You can always make stuff up to trigger AI hallucinations, like 'which 1990s TV show had a talking hairbrush character?'. There's no difference between 'not in the training set' and 'not real'.

Edit: Wait, no, there actually was a 1990s TV show with a talking hairbrush character: https://en.wikipedia.org/wiki/The_Toothbrush_Family

This is hard.