Oh wow, that’s quite the memory to have, and I know just how frustrating it is to search for something that you’re sure exists only to find nothing time and time again. (I once searched for a song for 15 years until the artist finally uploaded it to the web.)

Have you tried reaching out to Neil himself via his various social media? It might be something he did outside of Art Attack but was presented on ITV nonetheless?

I can only say your description rings a bell for me, but I can’t remember anything concrete